These sun-catcher wind chimes are really easy and fun to make. We have ours hanging from a palm tree. When the wind picks up the clinking of the disks makes a delightful sound. I have used many different types of beads when doing this project. Pony beads work the best. Now that they come in glitter and so many other great varieties the results are amazing. In conjunction with this project you can talk about wind direction, wind strength and the terms we use to describe it, and refracted light.