Rudolf The Red-Nosed Reindeer got an upgrade for 21st century when The Makery Team decided to create a Holiday Card using RGB (red,green,blue) LEDs.
All you need is Copper Tape, 3V coincell Battery, an RGB LED (check for if it's a common anode or cathode), and your favorite Holiday season character :)
Project by Oya Kosebay & Hsing Wei
Happy Making!