Bulb Drill

I have bare bulbs mounted on the walls. It seems that I can buy the shades that are just screwed on between the bulb and its base because there is no drill marks on the walls, and a piece breaks off, which appears to leave room for nuance. There is no name or have the lights on and I can not find anything on the Internet. I wonder if anyone has something similar in their homes and could help?

I'm not saying they do not exist, but I have never seen anything quite like you describe. Most devices are designed bulb for adding a shadow market, already after a frame attached to the facility that goes around the bulb. You can get nuances that loop to the bulb itself, not the device. They have a structure in wire tension spring that slips directly to the bulb. You can find them at many stores like K-Mart, Target, Sears, Home Depot, etc. They are pretty basic and the design choices and colors tend to be limited.

I would not trust those on a spring bulb horizontally. If this is your house, I looked in some patches (sp?) In a home improvement store. Installation is easy enough, they go on the box of your current base bulb is attached, no doubt.

Try your nearest B & Q Table Lamp section thats where I got mine.
Also try Homebase store, which is part of Argos, good luck.