I used to be quite good at trumpet playing, although I haven't really played since I lived in the one bedroom flat in London - it isn't a very easy to practice instrument when you have 3 neighbours with adjoining walls to hear it, and there's only so much you want to play with a mute in.
I play piano, which I'm quite good at (classical and chords/vocal line accompaniment stuff). Penny whistle, which I am passable at playing folk tunes on, Ukulele, which I can play chords on, the tetris tune, and a few other little tunes. I also have a chinese flute, an ocarina, an end blown flute that I think is an Andean Quena, I can play Irish folk tunes on those as long as they are not too wide a range.
Oh and I own a violin, which I can play twinkle twinkle little star on and not much else.
Oh and I've been known to sing, although not in public for years.