The Hydra
This insane three-headed instrument is the brainchild of musician Steve Vai and guitar-maker Ibanez. It combines a fretless 12-string neck, a half-fretless bass neck, a seven-string guitar neck, plus an electric harp at its base. This beautiful beast was designed by Moti Kashiuchi and crafted by Kazuya Kuroki of Ibanez Japan.