This is a 3D printed Arc Reactor which i modeled in Blender 2.8. It has animated RGB leds which are controlled by an Arduino Nano which is connected to a powerbank. The animation is an endless loop.

You can find more details in the video below.

A few more impressions:

Code and 3D Model:

Thingiverse: https://www.thingiverse.com/thing:4101492

Github: https://github.com/denczo/arcreactor