A light bulb made out of a Voronoi lattice structure with an addressable LED. The shadows created by this lighting fixture are awesome.
Please note that this will be incredibly difficult to print on a filament 3D printer, but could be accomplished if using a small diameter nozzle and water soluble supports. I printed mine on an SLS printer.
The bottom thread was a friction fit with the top of the bulb. Depending on your printer, you may need to do some sanding.
The addressable LED was cut off a strand of LEDs (https://amzn.to/3uZQgsc). Because it is only 1 LED, this bulb is not going to be very bright, but it will provide cool lighting effects in a dark room. The LED was hot glued into place and wired to an Arduino.
I have a video on programming these LEDs: https://youtu.be/bdIij70_VN0