Robert Brenne is proving that a guitar amp can be built out of anything. Well, one comment suggests an amplifier made from a loaf of bread, so maybe that’s crossing the line – but who knows? Wired.com posted this article about a guy making homemade amps out of pop culture items like lunchboxes and thermoses, some of which he’s sent to his idols in Metallica and the White Stripes. Check it out on Wired.com.