This is the free volume booster kit from BYOC

I attached a photo cell to the volume pot to create a light sensitive volume pedal
This seems counter intuitive, but hopeful uses are:
-strobe light controlled tremolo/volume booster pedal
-controlling volume with ambient light for sunsets and installations

Unfortunately it works darker=louder instead of the converse which I was hoping for and it clicks harshly when used with a strobe.
Soon I will make a vactrol for it, and hopefully fix the clicking problem.
And maybe paint it.