Martial ball on a chain

thingiverse

Fists clenched tight around leather-wrapped steel, his opponent danced forward. A metal ball attached to the end of a chain swirled through the air, whipping wildly as he swung it. His eyes locked onto his foe's face, flashing with an unyielding intensity that dared him to make one wrong move. The chain snapped taut, then released with a jarring clang, sending the martial artist spinning backward in a desperate bid for safety.