Free
The idea of this coin is for people to 3D print them and drop them into GeoCACHE's around the world. Assembly is easy, the center space is for a small coin like a penny so the BillyBotCoin2s can be found with a metal detector too. I'm using Gorilla Glue to glue the obverses to the reverses. This idea lets people create metal detector GeoCaches too.
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BillyBot Coin2 Robot GreenBack
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Creative Commons Attribution-NonCommercial-NoDerivatives
You can download and share as long as you credit the creator, but you cannot change the material or use it for commercial purposes.
Licensed under CC BY-NC-ND
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