A very quick and dirty design. Saw the color of the light and immediately thought about the arc reactor, so there's an inlay using clear PLA that hopefully will direct the light.
User nhchiu had the same idea and a much better design, happy to see someone had the same idea!
His version here: https://www.printables.com/model/627043-masterliquid-atmos-arc-reactor
The author marked this model as their own original creation.