A small idea, e.g. for a child's room.

I think it looks very nice, especially in the dark, if you then equip the room with Redstone lamps.

The gold ore should represent the many small stars on the ceiling. I have therefore taken gold ore, because it is yellowish, like the stars. (Of course they are not yellow, but you know what I mean. ;) )

Here again from another perspective:

Since you don't find gold ore that often in nature, in my opinion, it wouldn't exactly lend itself to using it in survival mode, but you can argue about it 😉