Here's a tiny patchable inverter accessory for the Chimera BC16 mini synth "a little PCB (postage stamp) with four wires hanging out of it (the whole package is heatshrunk into a clear sleeve) - it's purpose is to 'invert' any control signal used on the bC16". Being sent out free to all BC16 owners(mine hasn't arrived yet).
UPDATE: It arrived! It's cute! Haven't tried it out yet...