my two sound sources Plaits and rings
-- Rjsounds

Just thought I'd mention I see at least 2 more that can be used relatively easily:

  1. Beads: if you remove cables from the 2 inputs and wait a few seconds, the module turns into a wavetable synth. Seeding grains still works, so does the reverb.
  2. Quadrax: by selecting the bipolar LFO mode and turning up the rate, it turns into an oscillator with pretty cool waveform control and it will track 1volt/oct.

--- Voltage control all the things ---