These wool dryer balls are easy to make and a great alternative to fabric softener. They take just a little wet felting to make and last quite a while. You just need 100% wool yarn, panty hose, a washer and a dryer. Start by wrapping the yarn as tight as you can till your yarn ball is the size of a plum. Once you have done this for as many dryer balls as you want, ( I use about 6 in a load at a time) slide them into the panty hose and tie them tightly between each ball. Wash and dry them in HOT water. When they are dry remove them from the panty hose and wrap another layer of yarn on them. This time till they are the size of a tennis ball. Remember that when you felt it it is going to shrink a bit. Then re wrap them in the hose and wash and dry them again.