Post a picture....mine (below) has a small ceramic "bowl" that sits on top of a light bulb.
I would be concerned about the heat build up if you covered it.
Maybe find a cute vase that you don't mind drilling a hole for the plug and sitting it inside of it. Hummm, I might do that myself.
I wouldn't cover it but if you want to deflect the light put something nearby to block it from your view.
Hi Anna, are you looking for a way to keep dust out? Not sure what you are looking for
Could you wrap some aluminum foil around one side, but not cover it?