Ian Lesnet, who used to write for Hack A Day, did the Bus Pirate project, and now runs Dangerous Prototypes, has this cool little hackable LED holiday card/ornament (don’t tell Adafruit). The ATtiny13A-driven card comes in two flavors, an already-assembled version, for $15, and a not-for-the-weak-of-heart surface-mount soldering kit, for $12. The cards are currently being manufactured and Ian hopes to have them out by Dec 18th.

Prototype: Hackable LED Christmas card & ornament