character development

we're looking for someone to come up with a character for us for an iphone app The app is called artcritter and we need a "critter" character - so we were wondering if one of you guys could come up with something similar to a Tribble from Star Trek which could be subsequently animated to speak, roll about the screen etc - and be used as the actual app icon as well. We'd be looking for several variations - different colours mainly. Obviously those of us who remember the Tribbles will realise they were just balls of hair, but we'd need something with a bit of character, legs/arms etc and a face of course! Remember the name artcritter as that might help as well. Thanks in advance! $30 max budget for the final project which will require the character drawn in a number of different poses