BlinkyTile Dodecahedron v2 + accelerometer + FastLED. Cordless this time. 
Originally shared by Jason Coon
I assembled another dodecahedron, but this time I used an Adafruit Trinket Pro 3v, LiPo battery and charger backpack, and an accelerometer, and packed it all inside. I added a few switches for power, brightness, and pattern selection. It charges via the micro USB port on the Trinket.
http://www.youtube.com/watch?v=xRlQ6_sIits