See these popular YouTube performances:-

The Cindy Flute changes colour 12 times as it is played:-  http://www.youtube.com/watch?v=77MuARh165I

A flute is made and  played from a vegetable carrot :-  http://www.youtube.com/watch?v=EyAI3EHULRs

Saint-Saens, ‘The Swan’ played on a bicycle pump:-  http://www.youtube.com/watch?v=-r3BNoBD7J0