More to explore:
PVC instrument! (Directions at: http://devices.natetrue.com/pvc/pvc.htm ) #instruments
PVC Instrument Tutorial: PVC Instrument Tutorial, part 2
This blog has many ideas for outdoor instruments, including this suggestion that uses PVC piping.
PVC musical instrument
PVC pipe instrument. I want to build something like this for the back yard.
PVC Instrument Tutorial: PVC
MyMusicalMagic Make these Joy Tubes AKA Flop-ophone (or in Australia we call the Thongophones!)
Make a Reading Tent. How to build a play teepee. | The New Home Ec
PVC harp - perhaps I could make an Aeolian harp out of PVC pipes!
pvc piping instrument. Try to remember for the make your own instrument project on third grade!
Percussion idea, kinda looks like one of the PVC instruments that the Blue Man group plays