Here's jkokura's (Jacob) Scuba Muff fuzz I built for my brother-in-law as a Christmas gift. I put his kids pictures on it and labeled the switch that selects between two sets of clipping diodes with their names. The eyes of the respective kid light up depending on the switch position. Their family name is "Dial", so I used a play on words and called it the "Dial-a-Fuzz"
Rat's nest!!!
(Hmm... Not sure what that dark thing is next to the Gain text in these photos, but it was not a permanent mark. )
The enclosure is a 1590N, which is a little larger than a 1590B. I would have had trouble getting it into a 1590B, but someone like Midwayfair (Jon P.) could probably do it.
The transistors are socketed, but the holes on the sockets I had didn't hold the transistor leads very well. A "shake test" caused one of the transistors to lose contact with the socket. I used a dab of hot glue between each transistor an adjacent component to secure them.
I originally tried Davnt's (Dave C.) toner transfer method using GAC-200, but the toner didn't stick well to the metal. I probably didn't allow it to dry long enough (8-hrs) before removing the paper. I was in a time crunch, so I used the easier direct photo paper glue-on method with 5 coats of spray-on varnish.
Here's the link to the build docs:
www.jmkpedals.com/JMK_Pedals/PCB_Projects_files/Scuba%20Muff.pdf
