One more option (even cheaper and delivery from GreatBritain) could be this: http://eu.banggood.com/Wholesale-Warehouse-CJMCU-64-Bit-WS2812-5050-RGB-LED-Driver-Development-Board-wp-Uk-981678.html I have 2 of them, they work fine.
@JumJum 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.
One more option (even cheaper and delivery from GreatBritain) could be this:
http://eu.banggood.com/Wholesale-Warehouse-CJMCU-64-Bit-WS2812-5050-RGB-LED-Driver-Development-Board-wp-Uk-981678.html
I have 2 of them, they work fine.