Made from a Washer

Just a regular old piece of aluminum you can buy at any old hardware store.  I have been having so much fun stamping metal blanks that I get at my bead stores online that I thought I would try out another material.  I think it worked out pretty well.  What do you think?

blue aventurine paired with freshwater pearls and nickel plated beads
AND just a regular old washer from my tool box.