Here's a vero layout based on my own tracing of the original Mesa Grid Slammer pedal. Read more about the tracing process here. Unfortunatly it's nothing more then a TS-9 clone with a different diode clipping configuration, but a good sounding overdrive non the less.

Here's a fantastic sounding DIY fuzz from Björn Juhl of BJFE electronics.

A member of the tagboardeffects forum, John Kallas, made a better version of my layout here with the correct transistor orientation and alittle more space for the 100uF cap.

This is the BOYC (www.buildyourownclone.com) version of a DS-1 distortion with a few mods.
It's been suggested that R8 (4.7K) can be replaced with a 1K resistor for more gain.

Here's another Jack Orman/Aron Nelson collaboration. It has gone though several revisions and this version sounds great! It's a distortion that sounds kinda nasty/fuzzy in a good way and when you crank the tone pot it gets very troaty, almost octave-fuzz like.

Here's a great CMOS-based distortion from Runoffgroove. It's actually two distortion in one.
One channel called "bounce" (lead) and one called "jiggle" (rythm). They have individual controls and either can be selected with a 3pdt switch. I got oscillation on the bounce channel, but putting a buffer in front solved that.

"We wanted one channel to sound very amp-like in the classic style. The sound of overdriven Fenders, Marshalls, etc. were a target sound. For the other channel, we wanted something a little more "over-the-top." We wanted a very high gain sound, with a smooth top. Something along the lines of the older Boogie amps."

The Roland AD-50 Double Beat is originally a combined fuzz/wah. I drew up this layout for the fuzz section and it sounds amazing! I've been building alot of fuzzes and this one is top 5 for sure.

A forum member on the tagboardeffects forum "Neil McNasty" made a heavy modded version of the AD-50 fuzz that he call "the Huzzle and Cuzz Fuzz". It seems to be really cool! Check it out here.

Here's a video I found on youtube

"The Insanity Box" designed by Aron Nelson (the founder of diystompboxes.com) with mods from Jack Orman (www.muzique.com) is a great sounding fuzz/distortion! It reminds me of a Big Muff, but alittle more articulate/clearer. It has a massive amount of gain (depending on how you set the trimpots).

Here's a layout for a modded version of the Craig Anderton Tube Sound Fuzz. A great distortion that has inspired many others such as the Red Llama from Way Huge (one of my favourites).  My brother gave me the classic book "electronic projects for musicians" by Craig Anderton and the schematic was there so I could not resist doing a layout for it.

At first I drew up a layout 1/1 with the original schematic with a "turbo" switch. It basically bypasses the fuzz pot and increases the gain (alot!). But the turbo mode cause oscillation so I decided to remove the switch and play around with the gain alittle and this is the modded version I ended up with. Craig Anderton later did a buffered version of this circuit, probably to tame the oscillation.

Hjärt Muller is a bass overdrive from Moody Sounds. It's basically a modded tube screamer adapted for use with bass and it sounds pretty good. Moody Sounds made great DIY kits, so check them out. :)

Here's an interesting fuzz if you like noise :)

I found that a B100K works better for Oscillation Frequency and A20K for Power Starve.

Here a demo-video I found on youtube