The costume that worked best for me happened a long time ago when Revenge of the Nerds came out. I went all-out as a nerd and found (unlike being a nerd in real-life) that dressing up as a nerd back then made you a serious chick magnet. Yes, I DO have pictures and, when I can find them I'll scan a couple. It was such a crackup at the clubs we went to when some seriously cute lady goes "Oooo! It's a nerd!" I'd smile, turn to the side and take a squirt of Binaca breath spray, then I'd turn back and give a cheesy "Hi!" Man I was tempted to dress like that every weekend - hehe...