The Perry Bible Felllowship is a festival of bizzare, dark humor. Each comic stands on its own and features completely different characters doing completely different things. The style ranges from basic doughy characters, which coul be a part of a (horrifying) children’s book, to a variety of pretty awesome artwork. The comics are either completely random or downright awful, yet each of them humorous. Either way, you might not want to go there if you are easily offended.
Similarly disturbing and hilarious but more pop-culture oriented and not as well drawn: Space Avalanche