Hobby Clamp (Hayes-Style)

Assembled with 3mm PLA rivets (or M3 screws) and a rubber band. End cap may be glued, cemented, epoxied, solvent welded, friction welded, or stuck on with chewing gum. Print two of the swivel pads, one for each jaw.

Bottom Jaw: https://tinkercad.com/things/kxD7V7KrL0o
Top Jaw: https://tinkercad.com/things/1ba2and97r4
Swivel Pad: https://tinkercad.com/things/2zs0C8HPGqQ
Bar: https://tinkercad.com/things/isLkCC4onrb
End Cap: https://tinkercad.com/things/ajwm0ly85Pr