I have a soft spot for banana slugs (UC Santa Cruz, i think?) but recently Pickle Packers has claimed my attention. Chameleons are also an interesting choice. In my humble college athletic experience, as a bit of humorous motivation, my coach used a slug stamp on my forehead when i arrived a bit late for practice. He had good motivators in my opinion: butterscotch for winners, and little plastic E.T. figures for personal bests in fitness tests. Alas, i don't mean to wax too nostalgic... But i figured the question was worth a response, even if particularly late in the game.