https://www.youtube.com/watch?v=WeDCAS0-q9w A fidget spinner is a simple and basic handheld toy meant for mindless fidgeting. These toys are one of those "I don't get it" things, until you play with one. Fidgeting is actually very helpful for people with ADD/ADHD and even anxiety, but you don't have to have a disorder to appreciate them. Full Tutorial: https://learn.adafruit.com/3d-printed-fidget-spinner/overview