Starting with a tin canister, take it apart with needle nose pliers and craft scissors. I recommend wearing gloves when you do this to protect your hands.
* a good source for tin canisters is the thrift store
Cut out a piece of tin with some heavy duty craft scissors. Decide how wide you would like the cuff then add two centimeters. For length, measure your wrist or another bracelet you own.
Cut the tin piece into the shape of the solid lines. Fold on the dotted lines. Basically you're folding the edges in so there's no rough edges. To fold the metal, score the fold line with a ruler and sharp object (I used a knitting needle). Use needle nose pliers to fold the metal. Cover the metal with a bandanna when folding to prevent marking up the tin. The folded edges should be in the inside of the bracelet.
Last, bend the bracelet into a shape of a cuff. I recommend bending it around something round like a small jar or pole. When bending, make sure not to kink the metal ( this was the hardest part for me). Done.