A few months ago, Gallery 1988 in Los Angeles had a cult movie-themed art show in Los Angeles hosted by Clerks writer/director Kevin Smith and his producer Scott Mosier. The exhibit had tons of artworks inspired by cult movies.
This one above is a painting by Jeff McMillan titled "All Together Now" (larger pic here). Can you name all the characters?
Links: Gallery 1988's Crazy 4 Cult artwork gallery - via /Film