Finger Lamp

thingiverse

I literally use this thing every single day. It's hella useful for fixing jobs of all kinds. To get started, simply put it on your index finger and locate the button - then press it with your thumb. That's it! When you're in a tricky spot and need some light, just press the button and you'll be illuminated instantly. Here's what you'll need to build this thing: - An LED, 3mm diameter. You can find these at Banggood - they've got a great deal on them. Check out their website for more information. - A battery, specifically a 3.7V, 150mAh Lipo. Again, Banggood's got you covered with this one too. They offer competitive prices and fast shipping. - Big IO buttons. These are essential for making sure your device functions properly. You can find them in bulk on Banggood as well. I use it every day.