LED Earrings

thingiverse

Light up LED earrings, crafted for a Princess Peach cosplay, were printed in transparent PLA. You'll also need a 5mm LED, a CR2032 battery, and an earwire (the hook part) for each earring you want to make, plus a little superglue. I made two pairs of these, one using plain blue LEDs, and the other using some rainbow LEDs from Pimoroni (https://shop.pimoroni.com/products/5mm-rainbow-led-pack-of-10). You can see a video of the rainbow LEDs in action here: https://www.youtube.com/watch?v=Shw1exjkoVA. There are two holes at the bottom of the battery holder; just thread the electrodes through, one each, so they run down the inside of the holder. Twist one electrode over the front and back to hold it in place, leaving space for the battery in the middle, and glue the top and bottom halves together. The battery can be slotted in between the electrodes when needed and removed when you want to switch them off. The cover should click into place and can be popped out with a bit of pressure or with a small flat-bladed screwdriver.