Death By Audio Robot is an 8-bit, lo-fi pitch transposer / fuzz generator that has all the warm, sweet tone that you'd expect from a cold, soulless machine with a heart of microchips. The Death by Audio Robot is not for the faint of ears.
The Catalinbread Heliotrope, dubbed the Harmonic Pixelator, is an all analog synth-esque engine type of effect. It can bit crush, ring-mod, and octave but the Catalinbread Heliotrope does it all analog.
The Blackout Effectors Crystal Dagger is an effect like you've never heard. Putting together an octave fuzz with a ring-mod/phase circuit produces some interesting results and the Blackout Effectors Crystal Dagger does just that.