Just moved to a new house, so I decided to combine business with pleasure and created a cool atmosphere lights for my living-room. This project consists:

An ESP8266 which controls a 7 meters, 5050 RGB 12V led strip, 60Leds/meter.
The ESP is connected to the house router via WiFi.
The ESP receives data through a websocket on port 81, which means it can be controlled from any browser/OS.
It supports mdns, so no need for IP address to communicate with the ESP (Partially at the moment).
It supports OTA (Over-The-Air) updates - So no need to connect it to the computer to update the code.
Here's a video of how it looks like:
https://www.youtube.com/watch?v=kCMVl000P4c

The rest of the description, photos and videos can be found on my blog:
http://www.whatimade.today/esp8266-on-websockets-mdns-ota-and-leds/