Primus demos /unreleased tracks

I just wanna know if primus or les has any unreleased songs or demos that are available out there. Im really into ween too and i know about all their unrealeased stuff, but my dillema is that les has got to have some shit like this right? Songs/demos of songs that never made it onto albums, old recordings from when hay and todd? Old stuff from when brain was in there? Theres gotta he something.

I known of the sausage demos, sucking songs, primate, well to the way of sucking and what on youtube but its gotta go deeper