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Auction
VINTAGE 1987 Mattel Mad Scientist Time Freaks WART HEAD Collectible Rubber Watch • $20
Vintage 1987 Mattel Mad Scientist Time Freaks Wart Head Collectible Rubber Watch

20$ 0 bids | 7d

1987 Vintage MAD SCIENTIST 7” Bendable Figure Toy W/ Coat • $10
1987 Vintage Mad Scientist 7” Bendable Figure Toy W/ Coat

10$

Professional Mad Scientist By Professor Creepshow (Record 2022) • $35.72
Professional Mad Scientist By Professor Creepshow (record, 2022)

35.72$

1986 Vintage Mattel MAD SCIENTIST Monster Lab PLAYSET • $60
1986 Vintage Mattel Mad Scientist Monster Lab Playset

60$

1987 Arco Mad Scientist Accessory Lot Operating Room Mummy Monster Mini Vintage • $19.99
1987 Arco Mad Scientist Accessory Lot Operating Room Mummy Monster Mini Vintage

19.99$

80’s 90’s Nostalgia Toy Recipe Book Mattel Mad Scientist Living Ice & More • $1.99
80’s 90’s Nostalgia Toy Recipe Book Mattel Mad Scientist Living Ice & More

1.99$

Auction
Gemmy Dr. Shivers Mad Scientist Laboratory Animated Bubbling Test Tubes Sound • $12.50
Gemmy Dr. Shivers Mad Scientist Laboratory Animated Bubbling Test Tubes Sound

12.50$ 4 bids | 3d

VTG Sims Kevin Staab 1986 Mad Scientist Advert And Sticker • $15
Vtg Sims Kevin Staab 1986 Mad Scientist Advert And Sticker

15$

Auction
LIMITED EDITION KEVIN STAAB MAD SCIENTIST SKATEBOARD DECK Hoodie - PURPLE • $15
Limited Edition Kevin Staab Mad Scientist Skateboard Deck Hoodie - Purple

15$ 1 bids | 7d

1986 Vintage Mattel MAD SCIENTIST Monster Lab PLAYSET Creature SKELETON Arco !!! • $65
1986 Vintage Mattel Mad Scientist Monster Lab Playset Creature Skeleton Arco !!!

65$

Auction
Mad Scientist Theatre: 50 Movie MegaPack (DVD) • $20
Mad Scientist Theatre: 50 Movie Megapack (dvd)

20$ 0 bids | 1d

LEGO Collectable Minifigures Series 14 MONSTERS Mad Scientist • $8.95
Lego Collectable Minifigures Series 14 Monsters Mad Scientist

8.95$

Auction
Kellogg’s MAD SCIENTIST FUN KIT STICKERS • $18
Kellogg’s Mad Scientist Fun Kit Stickers

18$ 0 bids | 3d

YOU CHOOSE!! LEGO 8804 Minifigure CMF Series 4 • $12.57
You Choose!! Lego 8804 Minifigure Cmf Series 4

12.57$

Frankenstein Bottle Opener Solid Metal Mad Scientist Collector Patina GIFT 1+LBs • $59.69
Frankenstein Bottle Opener Solid Metal Mad Scientist Collector Patina Gift 1+lbs

59.69$

Mad Scientist Mad Libs - Paperback By Price Stern Sloan - GOOD • $7.50
Mad Scientist Mad Libs - Paperback By Price Stern Sloan - Good

7.50$

Mad Scientist Theatre: 50 Movie MegaPack (DVD) • $15
Mad Scientist Theatre: 50 Movie Megapack (dvd)

15$

Mad Scientist Theatre: 50 Movie MegaPack (DVD) • $12.99
Mad Scientist Theatre: 50 Movie Megapack (dvd)

12.99$

20%
The Mad Scientists' Club By Bertrand R. Brinley (2001 Hardcover Anniversary) • $7.16
The Mad Scientists' Club By Bertrand R. Brinley (2001, Hardcover, Anniversary)

7.16$ 8.95$

Mad Scientist Ma-Ba Zombie - Kaigyojin • $125
Mad Scientist Ma-ba Zombie - Kaigyojin

125$

Frankenstein Mad Scientist Lab Light Switch Cover Plate Flip Handle Toggle - New • $12.35
Frankenstein Mad Scientist Lab Light Switch Cover Plate Flip Handle Toggle - New

12.35$

Mego 8 Mad Scientist/Monster Hunter/Pirate Table & Accessories • $79
Mego 8" Mad Scientist/monster Hunter/pirate Table & Accessories

79$

MAD SCIENTIST Magazine # 29 - FREE SHIPPING USA Bela Lugosi Dracula Cover • $24
Mad Scientist Magazine # 29 - Free Shipping Usa, Bela Lugosi Dracula Cover

24$

Mad Scientist Ma-Ba Zombie - Gonigami • $125
Mad Scientist Ma-ba Zombie - Gonigami

125$

50%
Robot Chicken Mad Scientist & Chicken Figure Adult Swim Jazwares 2010 New Read • $40
Robot Chicken Mad Scientist & Chicken Figure Adult Swim Jazwares 2010 New Read

40$ 79.99$

LEGO® U PICK Minifigures STUDIOS **USED** • $7.95
Lego® U Pick Minifigures Studios **used**

7.95$

1987 Mattel Mad Scientist Time Freaks Wart Head • $20
1987 Mattel Mad Scientist Time Freaks Wart Head

20$

Mad Scientist Bendable Posable Figure Blue Monster Lab Arco Mattel 1987 RARE NEW • $44.99
Mad Scientist Bendable Posable Figure Blue Monster Lab Arco Mattel 1987 Rare New

44.99$

20%
Womens Sexy Mad Scientist Large Starline LA • $44
Womens Sexy Mad Scientist Large Starline La

44$ 55$

40%
Seasonal Visions International Mad Scientist Child Costume Size Large NWT • $20.99
Seasonal Visions International Mad Scientist Child Costume Size Large Nwt

20.99$ 34.99$

TRIXIE Mad Scientist Turn Around Strategy Game Cat Puzzle Toy Interactive Play • $22.57
Trixie Mad Scientist Turn Around Strategy Game Cat Puzzle Toy, Interactive Play

22.57$

20%
Mad Scientist Boy Medium 8 - 10 • $26.05
Mad Scientist Boy, Medium 8 - 10

26.05$ 32.56$

VTG 1987 Mattel ARCO Mad Scientist Bendable Figure 6.5 • $7.75
Vtg 1987 Mattel Arco Mad Scientist Bendable Figure 6.5"

7.75$

50%
Robot Chicken Mad Scientist & Chicken Figure Adult Swim New Jazwares 2010 • $40
Robot Chicken Mad Scientist & Chicken Figure Adult Swim New Jazwares 2010

40$ 79.99$

Vintage 1980s Mattel ARCO Mad Scientist Red Rock Figure Monster Alien Toy • $13.99
Vintage 1980s Mattel Arco Mad Scientist Red Rock Figure Monster Alien Toy

13.99$

Bryantman Action Figure DR. CONTAMINATOR 7.5 Promotional Wily Mad Scientist • $19.99
Bryantman Action Figure Dr. Contaminator 7.5" Promotional Wily Mad Scientist

19.99$

Mad Scientist Bendable Posable Figure Blue Monster Lab Arco Mattel 1987 RARE NEW • $49.99
Mad Scientist Bendable Posable Figure Blue Monster Lab Arco Mattel 1987 Rare New

49.99$

2021 Zoloworld Flexzors DR. BONE MAD SCIENTIST 6 Bendable Figure MOC • $34.95
2021 Zoloworld Flexzors Dr. Bone Mad Scientist 6" Bendable Figure Moc

34.95$

Brain Storms Touch Responsive Mad Scientists Doctor Plasma Electricity Ball 2002 • $129.99
Brain Storms Touch Responsive Mad Scientists Doctor Plasma Electricity Ball 2002

129.99$

Hulk #1 Illuminati Exclusive M. Mastrazzo Virgin CGC SS 9.2 NYCC Yellow Label! • $129.88
Hulk #1 Illuminati Exclusive M. Mastrazzo Virgin Cgc Ss 9.2 Nycc Yellow Label!

129.88$

1986 Mattel Mad Scientist Dissect An Alien Figure With Organ Pieces 11 Of 12 • $54.99
1986 Mattel Mad Scientist Dissect An Alien Figure With Organ Pieces 11 Of 12

54.99$

Monster Flex 5th Series Super Stretchy Figure To Choose • $19.36
Monster Flex 5th Series Super Stretchy Figure To Choose

19.36$

Mad Scientist Sammy Sneeze Mattel Alien Slime Vintage Monster Figure Toy BIN 11 • $19.95
Mad Scientist Sammy Sneeze Mattel Alien Slime Vintage Monster Figure Toy Bin 11

19.95$

Bryant Ac Bryantman Action Figure DR. CONTAMINATOR 7.5 Mad Scientist Toy • $9.99
Bryant Ac Bryantman Action Figure Dr. Contaminator 7.5" Mad Scientist Toy

9.99$

15%
Mad Scientist #39 Red Vintage Monster In My Pocket Series 1 Mini Figure MIMP • $8.49
Mad Scientist #39 Red Vintage Monster In My Pocket Series 1 Mini Figure Mimp

8.49$ 9.99$

Mattel Mad Scientist Monster Lab Assortment • $20
Mattel Mad Scientist Monster Lab Assortment

20$

10%
2003 McDonalds Stretch Screamers Mad Scientist • $6.29
2003 Mcdonalds Stretch Screamers Mad Scientist

6.29$ 6.99$

10%
VINTAGE 1987 Mattel Mad Scientist Time Freaks WART HEAD Collectible Rubber Watch • $26.99
Vintage 1987 Mattel Mad Scientist Time Freaks Wart Head Collectible Rubber Watch

26.99$ 29.99$

Mad Scientist Dress Up Playset Arco Mattel 1987 RARE VINTAGE SET!! With Box! • $115
Mad Scientist Dress Up Playset Arco Mattel 1987 Rare Vintage Set!! With Box!

115$

Vintage 1987 Mattel Rubber Watch Mad Scientist Time Freaks Rot Head* • $35
Vintage 1987 Mattel Rubber Watch Mad Scientist Time Freaks Rot Head*

35$

31%
Robot Chicken Mad Scientist And Robot Chicken Action Figure 2010 Jazwares • $55
Robot Chicken Mad Scientist And Robot Chicken Action Figure 2010 Jazwares

55$ 79.99$

1986 Mattel Mad Scientist Monster Lab Base Mixing Unit Station Copper Color • $15.99
1986 Mattel Mad Scientist Monster Lab Base Mixing Unit Station Copper Color

15.99$

C.O.P.S. COPS N Crooks Dr Badvibes Mad Scientist 5.75 Figure Hasbro 7690 1988 • $14.99
C.o.p.s. Cops N Crooks Dr Badvibes Mad Scientist 5.75" Figure Hasbro 7690 1988

14.99$

2023 Series 3 DISNEY PIXAR CARS MINI RACERS MAD SCIENTIST MATER #25 • $9.98
2023 Series 3 Disney Pixar Cars Mini Racers Mad Scientist Mater #25

9.98$

5%
Mattel Inc 1986 Figure Purple Cowering Ghoul Goblin MAD Scientist Billy Belcher • $22.79
Mattel Inc 1986 Figure Purple Cowering Ghoul Goblin Mad Scientist Billy Belcher

22.79$ 23.99$

10%
Mcfarlane Monsters Frankenstein Mad Scientist Figure Playset 3.75 1/18 Diorama • $25.16
Mcfarlane Monsters Frankenstein Mad Scientist Figure Playset 3.75" 1/18 Diorama

25.16$ 27.95$

Mezco 5 Points Superman (1941) – HOUSE OF JEWELS & MAD SCIENTIST’S LAB DIORAMA • $14.95
Mezco 5 Points Superman (1941) – House Of Jewels & Mad Scientist’s Lab Diorama

14.95$

Mad Scientist Theatre: 50 Movie Collection (DVD & Digital 201610-Disc Set) NEW • $15
Mad Scientist Theatre: 50 Movie Collection (dvd & Digital, 2016,10-disc Set) New

15$

1987 Mattel Mad Scientist Time Freaks Bone Head Vintage • $64.99
1987 Mattel Mad Scientist Time Freaks Bone Head Vintage

64.99$

Teenage Mutant Ninja Turtles Baxter Stockman Evil-Minded Mad Scientist. • $57.98
Teenage Mutant Ninja Turtles Baxter Stockman Evil-minded Mad Scientist.

57.98$

NEW 2003 GI JOE VALOR Vs VENOM DR. MINDBENDER 12in COBRA MAD SCIENTIST SEALED • $98.83
New 2003 Gi Joe Valor Vs Venom Dr. Mindbender 12in Cobra Mad Scientist Sealed

98.83$

80’s 90’s Nostalgia Toy Recipe Book Mattel Mad Scientist Monster Lab Flesh Read • $1.99
80’s 90’s Nostalgia Toy Recipe Book Mattel Mad Scientist Monster Lab Flesh Read

1.99$

5%
#3785 RARE NRFB Vintage Mattel Mad Scientist Operating Room With Figure • $474.99
#3785 Rare Nrfb Vintage Mattel Mad Scientist Operating Room With Figure

474.99$ 499.99$

1987 Mattel Mad Scientist Time Freaks Bone Head Vintage • $43.99
1987 Mattel Mad Scientist Time Freaks Bone Head Vintage

43.99$

Vintage 1986 Mattel Mad Scientist Set PARTS • $14.99
Vintage 1986 Mattel Mad Scientist Set Parts

14.99$

Mattel Mad Scientist Glowing Glop 1986 New Old Stock Open Box • $37.99
Mattel Mad Scientist Glowing Glop 1986 New Old Stock Open Box

37.99$

1987 Vintage Mattel MAD SCIENTIST Dress Up Playset MIB Arco HALLOWEEN Monster !! • $345
1987 Vintage Mattel Mad Scientist Dress Up Playset Mib Arco Halloween Monster !!

345$

Monster In My Pocket CHOOSE: Vintage Series 1 1990 Matchbox 2 Figures • $4.99
Monster In My Pocket Choose: Vintage Series 1 1990 Matchbox 2" Figures

4.99$

Mattel Arco 1987 Mad Scientist Rare Blue Rock Alien Creature Monster 3” • $19.99
Mattel Arco 1987 Mad Scientist Rare Blue Rock Alien Creature Monster 3”

19.99$

VTG 1987 Mattel ARCO Mad Scientist Bendable Figure 6.5 • $19.99
Vtg 1987 Mattel Arco Mad Scientist Bendable Figure 6.5"

19.99$

VictoryBuy Toys Classic Marx Mad Scientist Lab New • $17.80
Victorybuy Toys Classic Marx Mad Scientist Lab New

17.80$

Disney Pixar Cars Mini Racers Mad Scientist Mater 2023 #25 Free Ship $15+ • $14.95
Disney Pixar Cars Mini Racers Mad Scientist Mater 2023 #25 Free Ship $15+

14.95$

Robot Chicken ‘Mad Scientist’ Action Figure - RARE • $25
Robot Chicken ‘mad Scientist’ Action Figure - Rare

25$

1987 Mattel Arco Mad Scientist Red Rock Alein Creature Figure • $14
1987 Mattel Arco Mad Scientist Red Rock Alein Creature Figure

14$

Disney Pixar Cars Mini Racers 2024 Series 1+2 | Boxed/Sealed - Choose Your Car! • $18.99
Disney Pixar Cars Mini Racers 2024 Series 1+2 | Boxed/sealed - Choose Your Car!

18.99$

10%
Mad Scientist 3” Action Figure Plastic Imagenext Toy • $9
Mad Scientist 3” Action Figure Plastic Imagenext Toy

9$ 10$

Mattel 1987 Mad Scientist BONE HEAD Time Freaks MINT IN BOX • $59.99
Mattel 1987 Mad Scientist Bone Head Time Freaks Mint In Box

59.99$

Zuru 5 Surprise Mini Brands Books Series 1-PICK WHAT YOU NEED • $3
Zuru 5 Surprise Mini Brands Books Series 1-pick What You Need

3$

Disney PJ Masks LOT Of 2 Gekko & Mad Scientist Romeo Plush Dolls Just Play Toy • $12
Disney Pj Masks Lot Of 2 Gekko & Mad Scientist Romeo Plush Dolls Just Play Toy

12$

15%
Nightmare Before Christmas Doctor Finklestein NBC Mad Scientist Bendable 6” TB8 • $16.99
Nightmare Before Christmas Doctor Finklestein Nbc Mad Scientist Bendable 6” Tb8

16.99$ 19.99$

Roblox Series 9 - Make A Cake: Cake Scientist (Mad Scientist Cake) • $5.99
Roblox Series 9 - Make A Cake: Cake Scientist (mad Scientist Cake)

5.99$

Monster Flex 5th Series Mad Scientist Super Stretchy Figure • $24.78
Monster Flex 5th Series Mad Scientist Super Stretchy Figure

24.78$

Visible Invisible Man MAD SCIENTIST PURPLE Unbox Industries Creature Bazaar • $135
Visible Invisible Man Mad Scientist Purple Unbox Industries Creature Bazaar

135$

C.O.P.S. COPS N Crooks Dr Badvibes Mad Scientist 5.75 Figure Hasbro 1988 • $16.50
C.o.p.s. Cops N Crooks Dr Badvibes Mad Scientist 5.75" Figure Hasbro 1988

16.50$

VIntage 2008 Tech Deck Dude World Industries Mad Madd Scientist Excellent Condit • $19.95
Vintage 2008 Tech Deck Dude World Industries Mad Madd Scientist Excellent Condit

19.95$

Star Wars MARVEL GI Joe Glove Tops Custom Accessory 1:12th Or 6-7 Scale • $15
Star Wars Marvel Gi Joe Glove Tops Custom Accessory 1:12th Or 6-7" Scale

15$

Mattel 1987 Mad Scientist ROT HEAD Time Freaks MINT IN BOX • $69.99
Mattel 1987 Mad Scientist Rot Head Time Freaks Mint In Box

69.99$

25%
Robot Chicken Mad Scientist & Robot Chicken Figures Adult Swim Jazwares 2010 New • $60
Robot Chicken Mad Scientist & Robot Chicken Figures Adult Swim Jazwares 2010 New

60$ 79.99$

VTG 1998 Toy Island Toonsylvania Igor Action Figure Sealed New • $9.99
Vtg 1998 Toy Island Toonsylvania Igor Action Figure Sealed New

9.99$

10%
GI Joe Valor Vs Venom 12 Dr. Mindbender VTG 2003 Figure Cobra Mad Scientist • $62.99
Gi Joe Valor Vs Venom 12" Dr. Mindbender Vtg 2003 Figure Cobra Mad Scientist

62.99$ 69.99$

Vintage Mattel Arco 1987 MAD SCIENTIST 7” Bendable Figure White Shirt Rare VGC • $10.01
Vintage Mattel Arco 1987 Mad Scientist 7” Bendable Figure White Shirt Rare Vgc

10.01$

The Odd 1s Out Mad Scientist Plush 9 • $14.95
The Odd 1s Out Mad Scientist Plush 9"

14.95$

Mad Scientist Bendy Bendable Twistable Action Figure 1987 Mattel • $10
Mad Scientist Bendy Bendable Twistable Action Figure 1987 Mattel

10$

Red Monster Mad Scientist Gray Pants Vintage 1987 Arco Action Figure • $32.99
Red Monster Mad Scientist Gray Pants Vintage 1987 Arco Action Figure

32.99$

1986 Mattel Mad Scientist Monster Lab Base Mixing Unit Station Copper Color • $15
1986 Mattel Mad Scientist Monster Lab Base Mixing Unit Station Copper Color

15$

Roblox Series 9 MAKE A CAKE MAD CAKE SCIENTIST Blue Blind Box Toy Virtual Code • $12.99
Roblox Series 9 Make A Cake Mad Cake Scientist Blue Blind Box Toy Virtual Code

12.99$

4 Disney Club Penguin Mad Scientist Fisher Camper Fairy 2 PVC Figures Used • $27.75
4 Disney Club Penguin Mad Scientist Fisher Camper Fairy 2" Pvc Figures Used

27.75$

Vintage 1986 Mattel Mad Scientist Monster Lab Unused In Open Box Inv-0500 • $299.95
Vintage 1986 Mattel Mad Scientist Monster Lab Unused In Open Box Inv-0500

299.95$

Gossamer Et Mad Scientist Figures Funko Funkovision • $142.40
Gossamer Et Mad Scientist Figures Funko Funkovision

142.40$

Aramark Lab Jacket Coat Extra Small White Snap Costume Mad Scientist Long Sleeve • $29.99
Aramark Lab Jacket Coat Extra Small White Snap Costume Mad Scientist Long Sleeve

29.99$

    • Brand
    • Mattel50
    • Matchbox18
    • Age Level
    • 8-11 Years14
    • 12-16 Years10
    • 4-79
    • 17 Years & Up9
    • 3-4 Years6
    • Featured Refinements
    • Vintage Monster Toy29
    • Monster In My Pocket19