I actually have a guitar petal to get the perfect Fu Manchu tone
. It's got to be the nastiest petal that I own, and also one of the most useless unless you're playing Fu Manchu songs, but it's cool.
If you cranked the one dial up to full you got the rudest farting noises out of your guitar and random NES music.
04/24 - Nile
05/18 - Abigail Williams
06/19 - Negura Bunget
07/04 - Agalloch
08/23 - Alice in Chains
12/06 - the Music of Final Fantasy