Puzzlemation was created by John Peterson who won an Editor's Choice Award at the 2008 Bay Area Maker's Faire and in 2007 was awarded Distinctive Excellence in the Microchip 16-bit Embedded Control Design Contest. Using 2" squares with an 8x8 array of LEDs these digital tiles can be programmed via Ethernet with various light displays and animation. Each tile has its own power source so you can freely pick up and rearrange the squares with out worrying about losing the display. Just remember to charge your puzzle!
[source] Puzzlemation.com
[PDF] Puzzlemation schematics
