I don't play any instruments, unfortunately. I would like to learn either piano or violin (both of which we have, though they are very old). There's also a harmonica floating around the house somewhere, and my sister has an ocarina.
Oh, I did try to learn how to play a six-string guitar, but I got busy. If I had more time (and bigger hands, that blasted thing is the size of my torso if I recall correctly), then I think I'd be able to manage that, but I really want to figure out a string or key instrument.