Poke a Styrofoam ball through the top of a white or green tall garden/fence stake or spray painted dowel, and then cover it with white fabric or cheesecloth. Lightweight fabric will pick up in the wind more, giving them the illusion that they’re dancing. If your fabric is on the sheer side, you might want to use a couple of layers.
Make several of them and place them in a circle with the fabric corners tied together. You can secure the fabric over the Styrofoam with hot glue and a few white push pins in the very top for extra security. They look really cool dancing around a tree or faux fire pit!
A big thank you to….. http://www.listotic.com/16-awesome-homemade-halloween-decorations/9/