FANDOM


Joel2

The Invention Exchange is a ritual popularized at the Gizmonic Institute whereby inventors demonstrate a recent invention for each other. As practiced by the participants in the "Mystery Science Theater 3000" experiment, it serves as an informal contest, with each side trying to "win".

Joel Robinson, as an inventor, enjoyed and encouraged the Invention Exchange. Whenever he wasn't able to show off his invention, it seemed to bother him. His replacement, Mike Nelson, on the other hand, was not naturally inclined to such a scientific endeavor and the practice gradually diminished during the first few months of his captivity, until it ceased altogether.

When Kinga Forrester revived the experiment, she also revived the practice, "competing" with Gizmonic employee (and new test subject) Jonah Heston.


List of Invention Exchanges

Joel Robinson Era


Images-1-1
Episode Joel's Invention The Mads' Invention
101- The Crawling Eye Electric bagpipes
Images-22
Canine antiperspirant
Images-20
102-The Robot vs the Aztec Mummy Airbag helmet
102 - The Robot Vs The Aztec Mummy (Shout Vol. 15).mkv snapshot 00.02.14 -2017.03.15 16.52.48-
"Chalk Man" record and security system
Images-1
103- Mad Monster Hell-in-a-handbag
Images-12
Acetylene-powered thunder lizard
Dinotoy
104- Women of the Prehistoric Planet Toilet paper in a bottle Clay and Lars' Flesh Barn
Clay and Lar's Flesh Barn-0
105- The Corpse Vanishes Chiro-gyro
Images-24
Flame throwing flower
106- The Crawling Hand Safety saw Limb lengthener
107- Robot Monster Cumber-bubble-bund Methane whoopee cushion
108- The Slime People Cartoon eyeglasses Screaming cotton candy
109- Project Moon Base Juggling water Insect-a-sketch
110- Robot Holocaust Nitro burning funny pipe Stocking mask of the future
Unknown-4
111- Moon Zero Two Teleporting food Celebrity mouth to mouth toothpaste
112- Untamed Youth Never-light pipe Tongue puppets
Images-7-0
113- The Black Scorpion Giant party favor Mads have mutated
01.MADS-The Black Scorpion-Screen shot 2011-02-14 at 12.59.00 PM
201- Rocketship X-M BGC-19 drum machine
Images-1-0
BGC-19 drum machine
202- The Side Hackers Joel's pet slinky
PetSlinky
Dr. F.'s slinky body
SlinkyBody
203- Jungle Goddess Radio controlled circular saw Dr. F.'s head is fused to a sax
204- Catalina Caper Tickle bazooka
Unknown-6
Tank tops
Unknown-5
205- Rocket Attack U.S.A. Candy adding machine
Images-9
Water-polo foosball
206- The Ring of Terror Pin-bolus
Pin-bolus
Life-size "Operation" game
Images-7
207- Wild Rebels 3D pizza Hobby hogs
Images-5
208- Lost Continent No invention Exercise variations
Images-15
209- The Hellcats Sign language translator
Images-21
No invention (but they do yell NOOOOO!)
210- King Dinosaur Incredibly stinky sweat socks The pocket scientist
Pocketscience 2
211- First Spaceship on Venus Junk drawer helper Invention lost in MADs junk drawer
212- Godzilla vs. Megalon Easy-to-make Halloween costumes
MST3k 212 GvMegalon Invention Exchange- Joel and Bots
More Halloween costumes
MST3k 212 GvMegalon Invention Exchange- The Mads
213- Godzilla vs. the Sea Monster|center Mind controlled guitar
MST3k- The SOL crew's invention exchange for Godzilla Vs. the Sea Monster
Doggie chew toy guitars
MST3k- The Mad's invention exchange for Godzilla Vs. the Sea Monster
301- Cave Dwellers Smoking jacket
SmokingJacket
Robotic arm wrestling
Wpid-screenshot 2015-09-02-23-04-15
302- Gamera Endless salad bar
Gamera MST3K Endless Salad Bowl thumb-1
Bird cage vacuum
Gamera MST3K Invention Exchange thumb
303- Pod People Monster chord
Pod People Monster Chord
Public domain "karaoke" machine
MST3k- The Mad's Public Domain Karaoke Machine in POD PEOPLE host segment
304- Gamera vs Barugon Soda can animation Disco cumber-bubble-bund
305- Stranded in Space "Bang"-gun variations
Images-1-1
"Bang"-gun variations
306- Time of the Apes Cellulite phone
MST3k- SOL crew's invention exchange in Time of the Apes
Miracle growth baby formula
MST3k- The Mads' invention exchange in Time of the Apes
307- Daddy-O Air freshener mobile
Images-3-0
Alien teething nook
Images-8
308- Gamera vs Gaos Fax tissue dispenser Self image printers
Self Image Printers
309- The Amazing Colossal Man Non-permanent tatoos A plant that reviews music
A Plant that Reviews Music
310- Fugitive Alien Musical chair
MST3k- Joel's Xylophone chair invention exchange in Fugitive Alien
Eye, ear, nose, and throat dropper
MST3k- Fugitive Alien- The Mad's Invention Exchange
311- It Conquered the World The "Sony Seaman" Hanged man costumes
312- Gamera vs Guiron Collapsible trashcan
Gamera vs. Guiron- Collapsible trash and
Racy rorschachs
313- Earth vs the Spider CD blow drier Cheese phone
Images-18
314- Mighty Jack Ear-shaped earmuffs
Ear-Shaped Earmuffs-0
Formal flippers
Formal Flippers-0
315- Teenage Cave Man Rainy day epicacs
Images-16
Nothing (Mads fight)
Images-14
316- Gamera vs Zigra Crow-ka-bob Three Stooges guns
317- The Saga of the Viking Women and Their Voyage to the Waters of the Great Sea Serpent Literal "Waffle iron" Meat re-animator (for vegetarians)
318- Star Force: Fugitive Alien II The big head
MST3k- Joel's Big Head invention exchange in Star Force- Fugitive Alien II
Big noses
MST3k- The Mad's nose invention exchange in Star Force- Fugitive Alien II
319- War of the Colossal Beast Between-meal mortar Breakfast bazooka
320- The Unearthly Celebrity products
CelebrityProducts
Hard to swallow pills
HardSwallowPills
321- Santa Claus Conquers the Martians Misfit toys Wish squisher
Images-13
322- Master Ninja I Pop-up books for adults Boil-in-a-bag IVs
TheMadMasterNinja
323- The Castle of Fu Manchu Extremely useful phone circuit/the big head again Joe Besser "Stinky" bomb
324- Master Ninja II Perpetual hamster habitat Conveyor belt buffet
Conveyer Belt Buffet
401- Space Travelers The dollaroid Facial tissue
401-tissue-0
402- The Giant Gila Monster Sitcom radio Renaissance festival punching bags
403- City Limits Mr. meat and potato head Pop star Tupperware
MST3k City Limits- MN as Morrissey
404- Teenagers from Outer Space Scratch and sniff report cards
Scratch&SniffReportCards
Resusci-Annie ventriloquist doll
Rescesi-Annie
405- Being from Another Planet Jack Palance impersonation kit Tragic moments figurines
Tragic Moments Figurines'
406- Attack of the Giant Leeches Insty-adolescence kit
AdolescenceKit
Patches the leech
PatchesLeech
407- The Killer Shrews Jim Henson's Edgar Winter Babies
Mst407 - Edgar Winter Babies
The Mads try to destroy the Earth
DestroyEarth
408- Hercules Unchained The Steve-O-Meter
Images-3
Decorator Roaches
DecoratorRoaches
409- The Indestructible Man Cereal Novels
Unknown-3
Secret Invention
410- Hercules Against the Moon Men Super freak-out kit
SuperFreakOut
Deep Hurting!
TV's Frank & Dr Forrester; DEEP HURTING!
411- The Magic Sword Big gulp berets
Images-8-0
Designer bio-hazard absorbent throw pillows
412- Hercules and the Captive Women The womb mate The lawn baby
Captive2
413- Manhunt in Space Recycled paper clothing Beanbag pants
Beanbag Pants
414- Tormented Aunt Catherine Wheel Drinking Jacket
Images-10
415- The Beatniks Pocket pool
Images-10-1
Good-Luck Troll costumes
Unknown-7
416- Fire Maidens of Outer Space Nike Air Chalada
4988461501 b80173750c z
Big checkbook
Big Checkbook
417- Crash of Moons Rock and wreck guitar Sugary Deep 13 toothpaste
Images-9-0
418- Attack of the the Eye Creatures Funny gag fax Router Ouija board
Eyecreatures3-0
419- The Rebel Set Abstract paint-by-number kit Quick primp kit
Images-12-0
420- The Human Duplicators Beanie chopper
Poorjoel
William Conrad fridge alert
Human2-0
421- Monster A-Go Go Non-violent action figures
Hqdefault-0
Johnny Longstorso
421 042
422- The Day the Earth Froze Snacktion
Images-10-0
Unhappy meals
Dayfroze3-0
423- Bride of the Monster Microwave Faith popcorn The tough love set
424- "Manos" The Hands of Fate The cartuner
MST3k Manos- Joel and crew invention exchange is The Cartuner
Chocolate bunny guillotine
MST3k Manos- The Mads Chocolate bunny guillotine invention exchange
501- Warrior of the Lost World Bittersweet Hearts
Images-11
The square master
Warriorhost1
502- Hercules Instant karma Cellular desk
503- Swamp Diamonds Andrew Lloyd Weber Grill
MST 27
U-View
504- Secret Agent Super Dragon Micro-golf
MST 26
Virtual comedy
505- The Magic Voyage of Sinbad Rat Pack chess set
Hqdefault
Chinderwear
Chinderwear
506- Eegah Pork-orina
Pork
Replacing Frank's blood with anti-freeze
507- I Accuse My Parents Junk drawer organizer
Junk Drawer Organizer
Cake 'N' Shake
Cake-N-Shake
508- Operation Double 007 Sarah the bobbin buzzard Lederhosen-hosen
509- The Girl in Lovers Lane "Don Martins" Evil baseball promotions
Images-19
510- The Painted Hills Back-talk Cholester-do all
511- Gunslinger New whiffle items
WhiffleItems
The scanner planner
ScannerPlanner
512- Mitchell Daktari stool
512-stool-0
None (Mads are being audited)
Mitchellmike-0

Mike Nelson Era

Episode Mike's Invention The Mads' Invention
513- The Brain That Wouldn't Die The gutter bumber shoot

Images-17
The dream buster
514-Teen-Age Strangler The waiter-baiter

WAITER-0
Frank-n-Forcer
FrankNForcer
515- The Wild Wild World of Batwoman Razor-back

IE-515-SOL
Atomic powered hair dryer
IE-515-MAD
516- Alien from L.A. Fridge udders
TEATS-0
Vend-a-gut
VENDAGUT-0
517- Beginning of the End New playing cards
IE-517-SOL
Re-comfy bike
IE-517-MAD
518- The Atomic Brain The Mads
Botsasmads-0
Crow and Tom Servo
Madsasthebots-0
519- Outlaw Fabio Kit
Outlawhost
Really real time machine
522- Teen-Age Crime Wave Escape via rocket pack
Lox
Mace Mousse
Macemousse
612- The Starfighters Cowboy Mike's Red Hot Ricochet Barbecue Sauce
0.jpg
Cranial Ports

Jonah Heston Era

Episode Jonah's Invention The Mads' Invention
1101 - Reptilicus Bubble Fan
1101BubbleFans
N/A
1102- Cry Wilderness Turkey-Theremin
TurkeyTheremin
Carvel Clock
CarvelClock
1103- The Time Travelers Dr. Crow's Old Time Edible Silica Packets
EdibleSilicaPackets
Afterlife Alert
AfterlifeAlert
1104- Avalanche Mouth Vacuum
MouthVacuum
Don la Font-aine 3000
DonLaFontaine
1105- The Beast of Hollow Mountain Disco Cannon
DiscoCannon
Titanic Hot Water Cannon
HotWaterCannon
1106- Starcrash BB-Servo
BBServo
Band-eat-o
Bandeato
1107- The Land that Time Forgot M. Night Shyamalan Living
MNSLiving
Elder Pump
ElderPump
1108- The Loves of Hercules Fried Turkey Dunk Tank
FriedTurkeyDunkTank
Mexican Jumping Beanbag Chair
JumpingBeanbagChair
1109- Yongary - Monster from the Deep Tiny Desk
TinyDesk
Hitler Coffee
HitlerCoffee
1110- Wizards of the Lost Kingdom Verbal Smoke Bombs
VerbalSmokeBombs
Sponsor Clock
SponsorClock
1111- Wizards of the Lost Kingdom II GIF Notes Punt Bunnies
1112- Carnival Magic Yeasta Pet Flavor Sweat
1113- Il Natale Che Quasi Non Fu (The Christmas that Almost Wasn't) Re-Gifter Humbug FM
1114- At the Earth's Core Permanent Temporary Tattoos Rip Taylor Urn Cannon

Behind-the-scenes

The Invention Exchange was created as a means of featuring the "prop comic" nature of show creator and original host Joel Hodgson's humor.

The first few episodes with Michael J. Nelson in the lead also featured invention exchanges, but they were soon phased out to accommodate Nelson's less prop-oriented brand of humor.

When the show returned with Hodgson at the helm and new host Jonah Ray, the Invention Exchanges returned.