Gallery: The 10 Craziest Costumes at San Diego Comic Con 2011

No mass gathering of nerds would be complete without a bunch of idiots dressed up in ridiculous costumes—ridculously awesome, that is. Whether it's paying homage to their favorites or recycling old Halloween getup (sexy Harry Potter girl, looking at you), San Diego Comic Con is a freakshow within a trade show. Click through to take a look at some of the best costumes we found at Comic Con 2011.