I go through a lot of squash balls, and I’m always digging them out of my bag. So I designed a dispenser. Balls stack vertically in a cylinder, and at the bottom there’s a curved basin — kind of like a cat water bowl. The bottom ball rolls right out so you can grab it and go. The real challenge was getting that curve right. Too shallow, the ball won’t roll. Too deep, it gets stuck. I adjusted that radius at least ten times before it worked perfectly. Then I added a suction cup mount so it sticks right on the glass wall of the court.