Arduino - Keychain and Coin/Badge

Two prints in one: a keychain with a built-in loop so it can go on your keys or bag, plus a matching coin, handy as a gaming accessory, a marker token, a collectible, or just something nice to have on a shelf. Both print easily and take paint well if you want to add some color. 3.5cm across by default, but scale it up or down however you like.

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