Light source for starlit wall effect?

[AmemeAmeklin]

I used the carbuncle lamps that you can get with FC credits and starlight saplings

Only other time I've seen this, it was carbuncle lamps, so I side with Ashen. They aren't too hard to get.

Okay I'm 99.9% certain AshenBride is the one who made the thing OP is asking about. And by 99.9% I mean 100%.