A tiny 3x3x3 LED cube, controlled by a TinyDuino. The cube itself is about 1/2" on all sides.an Atmega328P Arduino capable. See tiny-circuits.com. I also used the Proto3 protoboard (after adding headers) from Tiny-Circuits. It uses the same base code as seen in a larger blue 3x3x3 LED cube: http://www.youtube.com/watch?v=Re5svahvZuo (The changes were to accommodate the reverse polarity of the LEDs. That is, for this cube the nine columns are cathodes and the 3 rows are anodes).
The #adafruit6secs is a 6 second video contest by adafruit.com. Deadline 5/6/2013 6pm EDT.