Ages ago, I saw a guy playing a set of drums made from a bike.
He played this:[audio:http://aiusepsi.co.uk/wp-content/uploads/drums.mp3|titles=Drums]
(Incidentally, I know about the weird broken layout to do with comments. Not sure yet how to fix it, got broke by a Disqus update. Edit: Fixed! Although in a supremely hacky way…)