I could not resist this 3D-printed sight gag from Thingiverse user mustachejack, who says it’s been on his bike for two months, so far, without breaking. The model includes an integral tube-clamp to be secured with a bolt or a zip-tie.

Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.