The Pocket Arcade - Fuzzhugger(fx)'s shrunk-down version of their Phantom Arcade... which is a huge pedal, and a huge circuit. How the heck Tom managed to fit that much awesome into such a tiny box is an utter mystery. So this is amazing sonically, visually AND engineer...ingly.
My OTHER favorite ugly guitar of all time - the Ovation Breadwinner, as re-imagined by Eastwood Guitars. I would have gone with the original Ovation version, but honestly, I like the Eastwood headstock better.