When I first learned that my BFF was all about her fidget spinner, I rolled my eyes. I thought it was just a trendy, silly gadget that people were using because it's popular. The reality of the matter is that they can be really useful to people who have trouble focusing. They also help anxious people release nervous energy. All you do is hold one between two fingers and lightly flick it to make it spin. It doesn't require a ton of effort, but it's a fun pastime. We rounded up the coolest options on the internet so you can give one a try. You never know, it could be your next big thing.