Some of these have been done before or someone may have mentioned them before, but this is just what I thought of on my own without looking back at other people's stuff.
INNOVA Discs
Groove = Austin Powers, LP record label
Boss = Bruce Springsteen, Tony Danza, Obama, Boss Hog (from Dukes of Hazard), Hugo Boss Logo, Boss Audio Systems Logo
Xcaliber = King Arthur's sword, The Las Vegas Hotel
Destroyer = Conan The Barbarian, Mushroom Cloud pic of the A-Bomb, Optimus Prime, MegaTron, Star Wars Destroyer
Max = Max Hedroom, Mad Max, Maximillian from "The Black Hole", Maxi- Pad "Used to block bloody shots"
TeeRex = dinosaur, dinosaur skeleton, Kawasaki T-Rex
Wraith = The Nazgu from LOTR, Wraith from Stargate Atlantis fame, Casper
Monster = Godzilla, creature from Cloverfield, Hannibal Lecter, Cookie Monster, Frankenstein, Sully and/or Mike from Monsters Inc., pic of your mother in law with "Monster-in-Law"
Starfire = Starfire from DC comics, blazing Sun picture
Orc = Tolkien Orc from LOTR movie or Return of the King animated movie, Warcraft 3 box cover Orc
Beast = Marvel Comics Beast (Hank from X-Men), Beast form Beauty & the Beast, wildebeest, Werewolf
Monarch = Monarch Butterfly, Queen Elizabeth II (with the words "God Save The Queen!" on it), British Flag
Firebird = Pontiac logo, phoenix, Jean Grey from (X-Men)
Viking = Nordic Viking, the helmet with horns, viking ship, NFL Viking logo
Valkyrie = Lady Viking, Honda motorcycle logo
Sidewinder = Snake, missile
Roadrunner = Looney Tunes fame, animal
Dragon = Bruce Lee, Smaug, Dragon's Lair dragon, any dragon, kimono dragon, dragonflies, snap dragon flower
Archangel = fire sword, Michael the archangel
Banshee = Taryn Manning, pic of banshee, Halo's Banshee Fighter
TeeBird = Thunder-bird car, Thunder bird rock band, T-Birds logo off their jackets in Grease
Eagle = Bald Eagle, music group logo, NFL Eagles logo
Whippet = greyhound running, Devo hat, Who let the dogs out?, Dog Pound, cat of nine tails and hand cuffs, mistress holding whip, dog house
Viper = snake, dodge car
Gator = animal, Florida Football logo, Steve Irwin, Bindy
Spider = Black Widow logo, any spider, Audi car, bite mark on disc, spider from Charlotte's Web, any web designs
Kite = box kite, bird
Panther = Marvel comics character, Pink Panther, animal, Peter Sellers
Shark = Jaws movie poster scene, Steven Spielberg, Hammerhead, any shark, Jabber Jaws cartoon, Shark from Finding Nemo
Coyote = Wile E Coyote, animal howling with moon background, "Coyote Ugly" with/without pic of arm chewed off
Cobra = Ford Shelby, Stallone movie poster, snake, GI Joe fame logo, Cobra Kai from Karate Kid movie, snake charmer
Stingray = animal, corvette, Steve Irwin(I hate putting this on the list)
Wolf = Werewolf, animal howling with moon background
Pig = Babe, Wilbur from Charlotte's Web, flying pig from Pink Floyd, animal, Harley Davidson logo, Boss Hog, Hogzilla, bacon and/or chops
Hydra = any water designs, fire hydrant, hydra sea animal, 3 headed dragon, hydrant with a 3 headed water monster coming out of the water spout
Goblin = Tolkien creature, Green Goblin (Spiderman comic/movie), David Bowie as Jareth the Goblin King
Aero = Saab car, Aerosmith faces or logo, any aircraft
Polecat = animal, any pole dancer
Sonic = Sega Sonic Hedgehog, Sonic Restaurant logo, jet with Sonic Boom behind it.
Discraft Discs
Force = any Star Wars Jedi good or bad, spaceship slingshooting around the sun, AirForce logo, Delta Force logo, Newton w/ apple falling (gravity)
Surge = Surge soft drink logo, outlet, lightning or electricity, Operation Game or scalpel with the title "Surge-ry"
Spectra = Pink Floyd Prism
Avenger = dodge car, marvel comics, the avengers TV logo
Flash = DC comics, a flash drive, anyone with open over coat, camera flashing
Crush = Orange Crush, trash compacter, the old wrestler The Crusher", car crusher, foot over cockroach
Wildcat = animal, sports logo, Goldie Hahn, Sandra Bullock
Flick = AC/DC logo, light switch, middle finger salute, Beaches movie w/ "Chick Flick"
Tracker = Cherry 2000 movie art, Mad Jack & old No. 7 from Grizzly Adams, any animal footprints, bloodhound, Sherlock Holmes
Predator = Michael Jackson, Predator form movies, The Graduate movie art, any big cat or bird
Cyclone = Wizard of Oz movie, Twister movie, The Game Twister mat, Tasmanian Devil, Hurricane from weather photo
Eclipse = Mitsubishi car, solar and/or lunar, Heroes TV show art
Buzzz = any stinger insect, any alcohol logo, Buzz Light-year, vibrators, little girl from Blind Melon video
Comet = Comet Cleaner logo, Haley's
Meteor = Asteroids game, Slim Jim, Spam, Superman, Men In Black BUG
Hawk = Foghorn Leghorn and the little chicken hawk, Hawk from comics
Banger = Kama Sutra graphics, Hammer, Thor
Challenger = Space Shuttle, Bag Tag #1
Rattler = snake, cry baby picture, baby from Roger Rabbit, baby rattle
Zone = Michael Jordan, "Diet", "Offense", "Defense", "End", "O-Zone"
DGA Discs
Rogue = X-Men fame
Titanic = Sinking ship, iceberg
Gumbputt = Gumby
Gateway Discs
Illusion = any magician, woman cut in half, Rabbit and top hat
Spirit = comic character, any ghost, Casper
Blurr = Speedy Gonzalez, any picture out of focus
Diablo = any devil picture
Assassin = Stallone & Banderas, The Professional movie art, any gun sights, John Wilkes Boothe, Ninja, Beverly Hills Ninja(Chris Farley)
Blaze = any flames, firefighter art
Hybrid = Prius, Alien-Predator hybrid
Sabre = Saber tooth tiger, Arabian sword
Demon = any devil, Tim Currey from Legend movie
Element = Any element symbol from the chart, 5th element movie art
Element-X = X-Files, "X" on a treasure map
Wizard = Gandalf, Harry Potter anything, Dumbledore
Warlock = Gandalf, Dumbledore
Magic = any magician, woman cut in half, Rabbit and top hat, cards
Voodoo = doll, chicken foot, chicken bones, Zombie, witch doctor
Latitude 64 Discs
Spike = Railroad spike
Sinus = runny nose, any cold medicine logos
Core = apple core, dissection of earth, trainer demonstrating a core exercise
Vision = glasses, binoculars, telescope, fortune teller, double stamp for double vision
Riot = L.A., Rodney King, Quiet Riot