Pop Wagner, a friend of mine, has a unique instrument he calls a shingo. The body is made from cedar shingles and the neck is made from an old chair leg—from a chair that was broken in a bar fight, or so he says.

I believe you can hear him accompanying himself on the shingo on his recording of OLD PAINT, which you can hear at his MySpace page.

Not quite the same as a cigar-box guitar, maybe, but pretty close, I'd bet.