I finally finished these handmade wool dryer balls. To make them, I wrapped wool yarn around itself tightly, as you would make small balls of yarn for knitting. I then took a large plastic needle and fed the end of the yarn through the ball a few times. Once secured, I felted the ball by placing it inside a pair of pantyhose and washed it on hot with my regular laundry. After that had felted for a few dozen washes, I took the balls out and wrapped them again until they were the desired size. Then I repeated the felting process inside the pantyhose.
Baby loves "his" set of play balls (!). I should have put a jingle bell inside. Wool dryer balls are a natural alternative to dryer sheets that help dry clothes and diapers quicker, and they also cut down on static. They aren't made from plastic, don't contain synthetic scents, and don't release chemicals into the air at high temperatures! And of course, they aren't a paper product that you throw away.