Cigarette lighter covers: "Eject" and "Fire Missile" buttons.
To change colors on a single filament extruding printer: run it for a few layers with one color, pause print, hurry and swap the filament colors, and resume print.
Print letter side down, and no supports are needed. I printed at 85% infill, but I'm not sure if it really matters.
Eject_Button.stl | 350.7KB | |
Fire_Missile_Button.stl | 366.1KB |