Reply #11: Slide Piano Log

[HughBeaumont]

The band uses many homemade devices as instruments, such as the Viking Rowboat.<1> Dan Rathbun — who has created most of the band's idiosyncratic instruments — plays, among other custom-made instruments (though he uses a common bass guitar most of the time), a custom-stringed bass instrument referred to as the Sledgehammer Dulcimer (or, alternately, the Slide Piano Log), which uses piano strings and is possibly more than 7 feet long; it is played with two sticks: one in the left hand generally used as a fret, and another in the right hand to strike the strings.

http://en.wikipedia.org/wiki/Sleepytime_Gorilla_Museum