I've got the button! I saw a rainbow colored cha-cha bracelet in a j. crew catalog and I was inspired to make a piece of rainbow jewelry. I used a chain, jump rings and toggle clasp, all from Michaels. The buttons are mine. I have a little hand-crank drill that I used to make holes in the larger buttons. Open up the jump rings, add a button and hook it onto the chain. For the clasp, all you need to do is open up your end links and attach the clasp to the end.