Have you ever made the mistake of washing and drying a wool sweater? You would definitely remember if you did because the shrinkage is quite dramatic. An adult-size wool sweater quickly becomes child-size. If your first thought is to throw it away, STOP! You have the perfect fabric for a felted wool project.
Recently I finished an article for Love To Know that explains how to felt. There are also free patterns on what you can do with that felt when you are done.