Fidget Spinners
Catherine Hettinger, the inventor of Fidget Spinners, got rich off her strange, but fun invention. The toy has a dome shape, like a frisbee. Unfortunately, her toy was rejected by Hasbro, but that doesn’t mean she wasn’t successful. We’ve all played with Fidget Spinners as kids, and can all agree they’re a great way to pass the time (Quality Logo Products).