Worlds Smallest Hermit Crab Wheel

This wheel was originally intended to be an inside joke. Baby hermit crabs are teeny tiny, and I am absolutely in love with them. I decided that there would be a need for wheels for the tiniest of baby crabs, crazy right! Well I couldn't help myself, and I actually made one as small as I possibly could, whilst still being "functional". The wheel works, the crabs can move it, but its ridiculously small. The coin pictured is 28.52mm, so the wheel is smaller. I am not suggesting that you actually…

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