simgoing 24 pcs diy stress ball making kit, blank stress pressure ball skin kit with vacuum evacuating device & expander tool make your own fidget pressure balls for adults (spiky) 24 spiky ball is up for auction in Arts, Crafts & Sewing. The current bid is $1.50, 95% below the $30.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.