- Here’s a batch of copper Cuff bangles I’ve stamped. Actually I do the stamping before I bend the strips into the bracelet shape. These are circular though I suppose most cuff Bracelets are oval. The round shape is my favorite. I use the clever ImpressArt bracelet bender tool and finish the shape with bending pliars. These cuffs were cut 6″x 1/4″ from 16 gauge sheet copper and left with an uncoated finish.