Counterfeit Money detector and Torch

thingiverse

If you still live in the 21st century and still use cash for transactions, here's something useful - a 3D printed counterfeit money detector and torch. Make your own using two ultraviolet LEDs, a coin cell battery, and 3D print the parts, which fit nicely and snugly into your wallet or purse. The two 3D printed parts are about four credit cards thick and double as a torch that you can use to protect yourself from tripping over things in the dark. To learn how to use the portable counterfeit money detector and torch, watch the short video at https://www.youtube.com/watch?v=NUXx4JigSGU. The 3D printed base has three slots: one to store the coin cell battery when it's not being used, a second slot on the left with two UV LEDs where you insert the coin cell battery, and a third slot on the right with a bright white LED that lights up when the battery is inserted and acts as a torch.