I recently downloaded an app called Gigdaddy which is a 4 track recorder, it's pretty cool. And the other day I decided I wanted to see what I could do with just my guitar, this app, and the built in microphone. I decided after recording the guitars that it needed some drums, and since I don't have drums, I used a metal mesh trashcan with some clothes in it and a pillow.
Anyway, this is what I came up with.
http://soundcloud.com/dallascarnahan/instrumetal-take-2