While printing a bunch of other ornaments as gifts this year, I decided to extrude an adafruit.svg vector graphics file I found at Adafruit, added a bezel to the pedals and printed it out on my MakerBot Thing-O-Matic.
No special instructions needed.
Adafruit and the Adafruit logo are registered trademarks. I am not associated in any way with Adafruit.
Warning: Experimental protoype. Use at your own risk. By downloading this file you agree to hold harmless and indemnify me arising from or in any way related to your use or misuse of this file and 3D printed object, including any liability or expense arising from all claims, losses, damages (actual and consequential), suits, judgments, litigation costs and attorneys fees, of every kind and nature.