So I was working on making juggling balls and got challenged by a friend,  scottishwolf to make a third layer. I had made one that used a constant size of ring on the outside to make the third layer. This one uses large rings and small rings to cage the lower layers but leave them all visible. It creates an interesting design. A dense triple layer made out of brass, bronze, copper, nickel silver, stainless steel and black steel was sold at AC13. This one is made of all aluminum.