I have an antique percussor I've had for 22 years. It only runs for about 10 minutes then cuts out, hahaha. I can't bring myself to throw it away. I remember when I was about 3, before the mechanical percussor, my grandma took a baby bottle nipple and wrapped a sock underneath it with duct tape and made a tiny, hand percussor. I think I still have it somewhere. Its a good memory.