Here. I'll just take the list you made and it fill it with all of our previous ideas plus a few more.
Bug/Fire = Either a firefly or a previously mentioned fire ant.
Bug/Psychic = Missingno's praying mantis idea.
Bug/Electric = A lightning bug. Incredibly obvious. The species has already been used and they didn't even give it this type combo.
Bug/Dark = A tick, a leech or a black widow.
Bug/Dragon = A dragonfly, which has stupidly already been done without the type combo. All I can come up with besides that is Dogadon from DK64.
Bug/Ice = Missingno's ice crawler idea, or something like that crystal spider boss from Bomberman 64.
Bug/Normal = An ordinary worker ant or a termite.
Dark/Psychic = The previously mentioned demon ideas.
Dark/Dragon = A stereotypical black dragon.
Dark/Electric = An evil TV monitor (not like Rotom or anything). I also have this other idea for something that looks like Elec Man.
Dark/Steel = Something that resembles Spawn or Nightmare from Soul Calibur. Or even better....BIKER POKEMON!
Dark/Ground = Missingno's night lizard idea works.
Dark/Fighting = Missingno's voodoo doll idea reapplied to this type.
Dark/Normal = The idea of a zebra being this type is a good one.
Dragon/Ice = Stereotypical ice-breathing dragon.
Dragon/Fire = Stereotypical fire-breathing dragon.
Dragon/Normal = A smaller, less fantastical-looking dragon. Kinda like Spyro.
Dragon/Fighting = Bruce Lee-based dragon that walks on it's hind legs.
Dragon/Poison = A quadrupedal wingless dragon that spits toxic gunk.
Dragon/Rock = A stone dragon. Meaning rock-like skin.
Dragon/Grass = A chinese-style dragon.
Dragon/Electric = A dragon that either spits lighting bolts or emits electric fields. Seriously, this should've happened already.
Electric/Normal = A lightbulb. XD
Electric/Fighting = Something similar to Electabuzz. I think it should look like a boxer. You know, electric fists.
Electric/Poison = Jellyfish would've worked, but that's taken. So the previously mentioned Metroid idea should go here.
Electric/Ground = Imagine Pikachu crossed with Sandshrew. You have this idea.
Electric/Rock = Flip's stegosaurus idea works well here.
Electric/Fire = KREMZEEK!
Electric/Grass = My glowing mushroom idea.
Electric/Psychic = A lightning imp. It has a fire imp counterpart.
Electric/Ice = I can't believe I forgot about Flip's thundercloud idea.
Fighting/Normal = A kangaroo. Not like Kangashkhan. A real kangaroo.
Fighting/Flying = I like the ostrich idea. An emu or even a bird of prey could also work.
Fighting/Ground = TAZMANIAN DEVIL!
Fighting/Ghost = A Japanese one-eyed goblin.
Fighting/Ice = Missingno's snowman idea could work, or it could be a yeti.
Fire/Normal = Missingno's lion idea works.
Fire/Poison = A flaming snake or a cloud of smog.
Fire/Ghost = Oft mentioned Will O' the Wisp idea.
Fire/Water = Either a cloud of steam or Missingno's Godzilla idea.
Fire/Grass = A burning tree.
Fire/Psychic = Fire imp. Counterpart to the above mentioned lightning imp.
Fire/Ice = A two headed beast that spits two different things.
Flying (pure) = Both Missingno's ideas for the hummingbird and woodpecker work. A canary could also work.
Ghost/Normal = My generic skeleton idea or Missingno's generic sheet ghost idea.
Ghost/Ground = My zombie idea.
Ghost/Rock = Missingno's gargoyle idea.
Ghost/Steel = My floating sword/suit of armor idea.
Ghost/Water = My proposed Kraken idea.
Ghost/Grass = Previously mentioned jack 'o lantern.
Ghost/Psychic = Missingno's giant eyeball idea.
Grass/Normal = Missingno's koala idea.
Ground/Normal = Both Missingno's llama and aardvark ideas work. A camel would also make a nice one. Also don't forget my original gopher idea.
Ice/Normal = Polar bear. Mentioned already.
Ice/Poison = Flip's antifreeze idea is the only one given so far. I have no choice.
Ice/Rock = Either an icicle or an ice golem.
Ice/Steel = I rather liked Flip's submarine idea. Maybe it can evolve from a torpedo. (By the way, what's a narwhal?)
Normal/Poison = I dunno what the hell Flip meant by "corrupted".
Normal/Rock = Missingno's new armadillo idea.
Normal/Steel = Missingno's bomb idea can work. Either that or a car/bike thing like Wheelie from Kirby.
Poison/Psychic = Oooh, Flip's virus and ink blob ideas are too awesome!
Poison/Steel = I looooove Missingno's drum of toxic waste idea.
Poison/Rock = My Koffing alternate evolution idea.
EDIT: I went back and editted some of Flip's ideas into this list. Now I can call it complete for the time being.
