This custom made bass from Conklin packs a whopping 9 strings and a bitchinâ€™ Pac Man logo on the fret board. The Ziricote 9 string bass is custom made with a neck-through-body design and Bartolini split pickups with custom switching electronics that allow the player to send the 4 low strings to a bass amp while the upper 5 strings go to a guitar amp or all 9 strings to a bass amp. Thatâ€™s pretty hardcore and allows for some real creative playing. Full story on Gizmodo.
Not sure what sort of bass-demon you’d have to be to be able to play this thing, but I love the fact that you can amp it up as a bass plus guitar in one.
Update: Boing Boing have links to a video of Jean Baudin playing this.