If this has been done before than I apologize in advance, I haven't seen it and I am curious.
I proudly refer to myself as a nerd, I like RPG's, star wars, reading, you know, nerdy stuff. But there are limits to my nerdom. I'm not here to really judge anyone for their interests, we all have our hobbies and I'm sure if you heard all of mine you would probably laugh at me. What I want to know is there something you've seen, heard of, or known a friend who is into something that brings out the Nelson Muntz *cookies for obvious reference* in you?
Personally the big three are Magic the Gathering, LARPing (if I actually tried it I would probably love it though) and fushibi, which is basically a glass ball you can do stupid tricks with (David Bowe does it in Labrinth and really only he in a cod piece can pull it off). I saw a commercial for them during Avatar and really wanted to give wedgies to all the people doing it.