You can search the purchasable things on here, as well as look at a few tutorials and downloadable modulators. He also has many links and contacts that may prove useful. Really helpful, are all his notes and information about specific pedals, toys, etc. in the "finished pieces" tab.
Recently in electronic parts + Category
Ax-Man surplus store is like no other. You can find things electronic: wire, leds, motors, switches, buzzers, etc and things non-electronic as well.
1639 University Ave.
St. Paul, MN 55104
..... surplus stuff aka cheaper
Electronic Goldmine - the name says it all.