Make ninja stress balls. this one is so awesome because it’s so simple! you just need a white mask, a few markings, and—bam! —you’ve got yourself a ninja. we like using a black balloon for this one, but you can really use any color. make baseball stress balls. this one takes patience and a steady hand. you could also do other sports themes. See more videos for how to make a easy stress ball with a balloon. To make a how to make a easy stress ball with a balloon balloon stress ball, start by stretching out the balloon with your fingers to make it more flexible for the filling. then, insert a funnel into the neck of the balloon and pour in ¼ cup of flour for a soft, malleable ball, or 1/4 cup of dried beans for a firmer ball. 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 anyone can make this fun and easy stress ball! you will need:-2 ball...