I have a bunch of V2 rotator box gears left on-hand I need to get rid of. They were printed with an Ultimaker 2 with PLA and are great quality. The center holes are 1.25" diameter which will fit a 1 1/4" dowel rod (unfortunately a 1 1/4" PVC pipe will not fit). I’d ask for $1.50 per gear, or $5 for a complete set of 4 (2 large gears and 2 worm gears) for a V2 rotator box (plus shipping).
See pics for quality.