I was going to suggest one of those 2 cent plastic job that binds up and gets harder and harder to turn after a few hundred thermal cycles until the lamp starts flickering and smells of burnt hair.
If you go with the brass switch at least have the shade designed to use a special bulb shape that you can only find on sketchy Ebay or Amazon storefronts, so end consumers are forced to try conventionally shaped bulbs which just fit but rub on the shade, heating it to first-degree burn temperatures. Bonus shitty design points if it also creates localized thermal stresses on these new bulbs so they crack and burn out far sooner than normal.
