Industrial Gear Cabinet Knob

My mother wanted cabinet knobs for her kitchen that had an industrial/steampunk sort of feel, but didn't find anything suitable at the normal retail stores. She asked me if I could print up some industrial-looking gears which could be mounted on the cabinets, and this is the result.

Rather than screw them in from behind like normal knobs, these are meant to be mounted from the front so as not to put so much stress on the plastic when pulled. Simply use a suitably long wood screw to go through the knob and into the face of the drawer/cabinet.