Glow-in-the-dark dimmer switch
Made with filament that I got at microcenter - inland. It took several tries to get the printed width of the hole for the post to match the post in the wall. Th knob has two input types - turn to brighten/darken and push on/off. The problem was that when you pushed the old knob would fly off because it wasn't the right size, so I needed a new one. It is some super old thing and doesn't match anything I could find at home depot, so I just printed one.