Sonofcastille has published a set of videos demonstrating beautiful steampunk-style synths and noise generators.
Here are a few of the coolest:
This is Ray Wilson’s Weird Sound Generator circuit off of musicfromouterspace.com, plus audio amp scavenged out of a Radio Shack amp. The case was an old telephone from the 70s.
Captain Nemo’s Beat Box
This is a circuit bent Realistic/Radio Shack drum machine from the 80s.
Radio Free Mars