The mantis shrimp comes equipped with its own weapons. It has claws that look like permanently clenched fists that are known as dactyl clubs. But when it smashes the shells of its prey ...

Then it was on to the dactyl manuform mini shown here, which [tslil] printed in wood PLA and sanded to arboreal perfection. But this had too many keys, so it was back to the drawing board ...