How to make a stress ball the spruce crafts. With just a few supplies and 10 minutes anyone can make this fun and easy stress ball!. in your bowl, place 6 tablespoons of corn starch and slowly work in 3 tablespoons of water.. blow up both balloons to stretch them out and then place one balloon over the top of the water bottle. diy stress balls: funnel cornstarch into a balloon (optionadd water to the. You will need:-2 balloons-cornstarch–water-small bowl (paper or. with just a few supplies and 10 minutes anyone can make this fun and easy stress ball!. to stretch them out and then place one balloon over the top of the water bottle. remove the balloon from the funnel and let out as much air as you can.. cornstarch and a small spoonful of water will make a stress ball that's soft when. Diy stress balls: funnel cornstarch into a balloon (optionadd water to the cornstarch for a different texture) good for stress relief, strengthening hand. with just a few supplies and 10 minutes an...