Free and Easy DIY Bouncy Ball Make your own bouncy ball with this fun DIY set from Free and Easy. Shake the powder of the desired colors into the mold and shake gently up and down. Then place the mold in a bowl of warm water for a few minutes. After five minutes, open the mold and you have a cool bouncy ball. Specifications: Mold color: multicolor Powder color: multicolor Gender: junior Material: plastic Age: from 8 years Contents: 6 Bags of powder 3 Molds