us navy Engineman "challenge coin"

thingiverse

I needed a Navy emblem for my motorcycle, so I looked into challenge coins, but then I worried that one might fall off, leaving me unhappy. With a 3D printed part, I can simply print another one if needed. This weekend, I hope to give it a try. My design is based on regular challenge coins, with plans to size it up for a better fit. I came up with this idea because my bike originally had two round emblems on the trunk - Masonic symbols that eventually fell off, revealing their spots in the paint. To cover them up and improve the look, I'm making this emblem now.