strange. I've never played at playin' instruments except, as Walter said, faking a bagpipe, but I swear on some late night show, I saw a man walk out in full black tie regalia, rip off his sleeve and play his arm, complete with cadenza. I guess that could be called Geeky, but it was hilarious.
Also the drummer in our group used to play a magazine with his brushes.
Hey, does that count as air stuff?