This guitar built from workshop hardware shows you can make an electric guitar out of just about anything.  The neck is a spirit level, with attached saw and hammer. Paint tins behind the body add resonant chambers. The frets look like nails and are tied on sitar-style. But electrified and played through an amplfier with a bit of delay it sounds OK.

http://www.youtube.com/watch?v=bzUXcrvXR38