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.
https://www.thingiverse.com/thing:5136514
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.