A friend mentioned that she was making a bottle cap wind chime and my mind started dancing! The principle is so simple and it can be put together in an infinite number of ways. Part of the fun is finding the bottle caps and the topper.
I ordered some soda caps on Ebay so I could get a fun variety and didn't have to wade through oodles of soda. Using an awl and a small hammer, I punched a hole in two edges of each cap. This was a fun camping activity and I grabbed a piece of firewood to punch into. There are over 150 caps in this chime, so it took awhile.
Then I used pliers and jump rings to attach the caps into long chains. Thicker rings worked a little better, as the caps have a tendency to slip off smaller ones. You could use wire and create your own as well.
You can use a vintage colander, tin or pretty much any old thing as a topper. I found this Hills Brothers coffee tin from an antiques vendor and punched holes along the sides and top to attach to my bottle cap chains.
These are so fun, I HAVE to make some more!