This is my first working FX build, the Bazz Fuss (
http://www.home-wrecker.com/bazz.html). Really simple circuit, 1 transistor, 1 resistor, 1 diode, 2 capacitors and it has an awesome sound on both bass and guitar.
I'll be adding a trim pot for the volume, but leaving the gain as is, it's nice and touch sensitive, cleans up well when you pull back.
The next step is to get it into an enclosure and wired up with bypass. Does anyone have sources for enclosures and footswitches? I see mantech stocks them. Does nayone have experience with dealing with them?