stress balls... diy. cornstarch and water. ours exploded within a few hours but it was still fun to make! plus the kids learned a lot about the properties of corn starch and water. (hit it quickly and it's hard... slowly emerge and it's gooey)
Make stress balls out of balloons and either rice, flour, or beans! Take a balloon and stretch it out a little. Then fill it with rice, flour, or beans.( You can use a funnel.) You can decorate them in a million different ways. Lots of fun!