This is an interesting little phenomena that is going on in our city. Throughout the Sunset Hills neighborhood, one of the oldest in the city, literally hundreds of these really cool balls, orbs, etc are hung from the tree tops. Hubby and I were driving to a party on the 23rd and noticed these. We both squealed like 4 year olds and drove through this canopy of lights. They are truly amazing. This blog shows photos and even directions on how to make these. Lots of chicken wire, lights, extension cords and some way to heist these into the trees!