"The Tonebox" (for lack of imagination..) is what I call this two-in-one pedal. It's a Foxx Tone Machine (octave fuzz) and a Synthbox octave down (a DIY circuit based on Joe Davisson's Shocktave). I also added a split/blend (AMZ buffer/splitter) and a small booster (EHX LPB1) since the output was just below unity. It turned out very cool sounding, especially when blending the up and down octaves. I used my own layout for the Synthbox that you can find here and layouts for the other circuits from tagboardeffects.