When I had the center of the dash apart to fix the heater controls, I also replaced the cigarette lighter socket. I don’t smoke, but I wanted the socket to work so I could charge my phone, or run a GPS.
The lighter element was rusted into the old socket, so when I pulled on the chrome knob, it pulled off of the rest of the lighter. I didn’t want to put the old rusty element in my nice new lighter socket, so I made a dummy one to hold the chrome knob so nothing looked like it was missing. I created a 3-D printer design for this, which I uploaded to Thingiverse.
The final photo shows it in the dash, and the flash managed to highlight all of the dirt and scratches on the dashboard. It looks better in person.