This is my first design so please be gentle. Also it was made on TinkerCad and if you are familiar with the program you know the limitations.
I took the inspiration from an AliExpress model but made it simpler just for décor.

My printer is limited to 150x150mm but model can be expanded. I don't recommend smaller size if you are planning to use RGB lights.

Here's some tips:

Bed and Outer section:
Because there's only one layer supporting the all structure, i recommend using 10C more on the bed for better adhesion. Other parts should print fine on your normal temps.

Inner section:
I used silk white and as you can see there's plenty of light. But you can try transparent.
I left an hollow section so the light can spread evenly on the section instead of you seeing the RGB lights marks.

Legs:
Can be tricky to position the legs on the right level. I used super glue on mine.

Tolerances:
We all know printers have different tolerances, some sandpaper polishing might be necessary on some corners.

Printer:
Flashforge Adventurer 3

Rafts:
No

Supports:
No

Resolution:
1.8mm

Infill:
15%

Filament:
Generic Black PLA + Silk white

LED's:
I used this but there's many options available