While you may or may not have frozen ponds where you live, if you have an available smooth surface you can still enjoy a game of floor hockey with this brilliantly illuminated puck.
Yuksel Temiz’s 3D-printed device features a 12-LED ring inside, which shines brightly through the top of its translucent body and reacts to acceleration. Control is via an Arduino Nano along with an MPU-6050 IMU for sensing.
Two versions are made in the video below — one with CR2032 batteries and another with a rechargeable LiPo. PTFE furniture glides on the bottom help the puck slide across the hardwood floor. The build, which also includes a set of 3D-printed sticks, looks like a lot of fun for Temiz and his two-year-old son!