My wife’s family has a tradition of making jewelry trees. My daughter and her grandparents made one, and I helped add a little color to it.
Built with 30 8mm WS2811 RGB LEDs, a Teensy 3.1, the FastLED library, and an infrared receiver and remote control.
Build pics and details (click the info button on the pics): https://photos.google.com/album/AF1QipMp3wwAzU9HrsRP40a0yCmx8zOzwEGdoiVD8cCB
Source code: https://github.com/jasoncoon/jewelrytree-teensy-ir
http://www.youtube.com/watch?v=WQbUC53BRLU