SHADE END CAP

My beautiful wife said that I would be lost without my 3d printer. She showed me a piece of plastic. "What is this?" she said. I responded “I don't know, but don't throw it away”. Two weeks later I found out. A pull down shade was missing its end caps, but the other three were also gone. What to do? The 3D printer to the rescue. I used the one I had to make replacements.