If you aren't familiar with the Fidget Spinner, the colorful plastic toys are used to help relieve stress and have been marketed as tools to help children with ADHD and autism. The toys have gone viral recently, with entire websites dedicated to how addictive they are, and one beauty blogger has even tried to contour with them (the true sign that a product has "made it" in 2017). According to Teen Vogue, there is science behind the obsession. A recent study showed that the toys help increase focus and a sense of calm by giving people something to do with their hands. Putting the spinning toys on your nails probably won't have the same effect, but it will definitely make for a conversation starter anytime a handshake comes into play.