But those are felted balls. It does not get any more easy than making your own felted dryer balls. Surely you have heard of these eco-friendly no chemical substitutes for dryer sheets.
If you are unfamiliar, type the following into your favorite search engine:
felted dryer balls. Today, it took Google 0.22 seconds to return over 50,300 hits.
You can buy them on Etsy or from the higher end fancy home stores. Or, for the price of a hank of inexpensive wool and hot water with baking soda, you can make them yourself.
I will spare you the not so difficult details. Suffice it to say that you loosely wind wool into a ball. Put the balls into an old pair of knee highs. After that it is just a matter of hot water with baking soda (that whole alkaline issue) and agitation followed by the shock of cold water.
Voila! And, if you enjoy needle felting, these are great to use instead of that brush thingy.