a custom knob for a certain amplifier. I'll post pics when it get it, but it's pretty basic. Most importantly, it fits a 1/8" shaft. I got it from a local place, which is cool:
http://www.armadilloguitar.com/
if anyone ever need custom knobs, give them a call. I think I paid around $18 for a solid stainless steel knob that's around 1" thick and 1.5" in diameter.... with position indicator and set screw.
that being said, I now have a spare vt4c knob for sale.