Small base for OBulb that has a short protrusion for making it simple to push down to turn on. You can glue a 10mm washer to the center section if you'd like to make the unit magnetic. This allows for a simple squeeze to turn the Obulb on/off, even if it tips over, or rolls away.

Print with glow in the dark filament to make it easy to locate when the Obulb is off