The newest fidget craze is popping toys. Adults and kids all over the world have been buying up this endlessly reusable version of a longtime favorite fidget activity: popping bubble wrap. Made of silicone and coming in a range of colors, shapes and sizes, they are half-sphere “bubbles” that can be pushed in, making a satisfying soft popping sound. After “popping” them all, you can turn the toy over and start again from the other side.