What the fuzz?!

EDIT 2014-10-20
Soundclip added.

Here is a cool sounding octave fuzz by Effdub Audio. A LM386 distorts the signal and a couple of transistors in a class AB push pull configuration creates the octave up (almost identical to Tim Escobedo's Push Me Pull You, except he uses a transistor front end).

It has a strong octave up and is very simple to build. :)