Coke Bottle instrument and PVC Fujara

"Two home made instruments - one from 2litre coke bottles and tyre valves - and the 'fujara' from standard PVC plumbing fixtures, a bit of garden hose and a bit cut off a shovel handle. The fujara was not quite in tune yet"

Circuit Bent : Greeting Card

http://www.techdweeb.com/VCard.html

Unique DIY projects with resource links

http://www.jrobertlennon.com/work1.htm

How to make NES style music

http://www.student.oulu.fi/~vtatila/nes_sound.html

Build your own Feed Back Loop with photo eye

http://www.processr245.com/articles/diy.php