This is a remix of the adafruit "On Air Sign for Twitch"
I wanted to print the original one, but my printer is to small... So I've decided to remix it. Just made it a bit smaller, merged the "on air" plate with the front, changed the screw mounts (I've used 6 M3 screws 20mm) and added a hole to the side for an external 5V power supply.
Inside works an Wemos D1 Mini with Wifi, I can set the color of the WS2812B leds by using MQTT protocol (which integrates perfectly in my smart home system).
Just print the case in any color you want. The diffusor has been printed in white.