Cheerlights is an awesome example of an IOT (Internet Of Things) collaborative project. It allows all users lights across the world to synchronize to one color. For that, it uses a Thingspeak channel and API. More information about the project you can visit its page.
Since I already had a cube (15,1cm x 15,1cm x 15,1cm) , I just needed to print a base to hold the cube, the Adafruit's HUZZAH breakout board and the Neopixels Ring.
More information and code here: