With the much anticipated "release" of Spore's Creature Creator fans world wide have begun to craft their own computer generated beings with ease. For better or worse some of these initial creations have taken an odd turn toward the "obscene."
Note that the small PNG's apparently contain the data to load the creature into Spore on your end. I haven't given it a shot yet, but if it works, awesome.
The Best
Zerg (StarCraft)
(Yes, I know the Smiley Face came before Walmart turned it into a mascot but it's only a matter of time before this guy drafts a legion of poor rednecks)
Twinkie