César López, a sculptor from Colombia, takes rifles formerly used by paramilitary units in his country and turns them into guitars:

The idea came to Lopez back in 2003 when, while playing in front of a Bogota country club, he witnessed a car bomb explode. In the ensuing confusion, he noticed how the army guards all carried their rifles in a manner that resembled the way he carried his guitar and out of that explosion came the first escopetarra—a Winchester rifle/Fender Stratocaster hybrid.

The Vice President of Colombia donated a dozen AK-47s to López to encourage his art. At the link, you can see photos of other rifle-guitars that he's made and a video of him performing music on one of them.

Link via Geekologie | Photo: Guns.com