Stacy just posted a Comedy Central take on Comic Con Bingo, but personally, as a frequent attendee, I find the Last Gasp Bookstore's Bingo board to be a little more accurate. So far I'm sill looking for a furry and a klingon, but other than that, all of my squares would be blacked out so far. If you're at the convention, grab a board from the Last Gasp booth and you can win prizes when you fill get a Bingo with picture evidence of your discoveries.
http://www.lastgasp.com/bingo/ Via BoingBoing