Articulated crab keychain
thingiverse
Update: Added the one with movable claws from the original and put the key loop in a different place. Print with same settings. Remixed this articulated crab from https://www.thingiverse.com/thing:3629031/files to add a keyring holder. Didn't get wild with the print settings, just used standard settings in prusa and all went well.
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