I made some key chain rings out of Aluminium. They are really easy to make. You draw the shape on the piece of alu sheet ( i used 18 gauge ) with a Sharpie and then use your Jewelry Saw to cut out the pieces. Punch a hole or drill it and put it on a key chain ring. Voila you have a personalized key ring. On this one i cut out a little heart from one wing. So cute. Alu is very light and i love working with it. i might get more to make rings and bracelets , it is perfect for stamping. The key ring i used for this one has little balls on each end that unscrew so you can add your key.