You can get them direct using the Tindie store, or from distributors (for example Adafruit in the US):
http://www.espruino.com/Puck.js#buy
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You can get them direct using the Tindie store, or from distributors (for example Adafruit in the US):
http://www.espruino.com/Puck.js#buy