Diy giant slime stress ball! super soft & squishy. Amazon Com Stress Balls How to make a slime stress ball: a viral trend that has been going around is people buying, and making slime. i have decided to put my own twist on this trend. with this instructable you will be able to learn how how to make a giant stress ball to make your own slime stress ball. if you're stressed out and want. Larger than most one-handed stress balls, this nearly 6-inch-diameter squishy ball will get your blood flowing when you work it with two hands. keep one on your desk and one around home for ultimate stress relief all day long. large stress ball filled with soft molding compound. ages 8+. 5. 5" diameter. How To Make A Stress Ball With Cornstarch And Water The To make a stress ball, slip a funnel into the neck of a sturdy balloon. if you want to make a firm stress ball, pour flour, baking soda, or cornstarch into the balloon. if you want your stress ball to be softer, use lentils, s...