I also built a small fuzz pedal. Pretty much a one trick pony, but real fun to mess around with and sounds really good. Need to try it out on bass.
The knob controls the volume and turned all the way up just screams. Only way to control the amount of gain is to adjust your guitar's volume knob. Simple, but works well. I built it off this layout.
I've let a couple friends borrow it and they all really like it. I have a transparent overdrive I'm planning on building next, then a ZVex Woolly Mammoth bass fuzz clone and probably a Big Muff clone too.
I've also been kicking around the idea of making my own control plates for a couple builds. I've got a Jaguar that's been in the works for a while and I wanted plates similar to the ones on the Johnny Marr Jag, but couldn't find any online (not to mention how expensive they'd be if I did). So I decided to try my hand at some metal work. I also have a Telecaster prototype-inspired build I want to do so I made my first attempt making the basic control plate for that. Got some fine blades for my scroll saw and attacked some 1/8" thick aluminum stock. Filed out any irregularities and then wet sanded and polished.
I used a tiny little buffing attachment on my Dremel tool to do most of the polishing. Turned out pretty well. Better than I expected, but I'm going to invest in a larger buffing wheel I think. The Dremel attachment worked ok, but left some small streaks. I think it can mostly be attributed to the fact that the Dremel pad is about the size of a quarter and only a 1/4" thick. A bigger buffing pad would even things out better.
In closing, I'll leave you with this pic:
(Mini guitar I refinished for my littlest sister-in-law's 9th b-day. Rock on Melissa!)