Adapter for a bathroom light 'cover' (usually made of glass). Comes in different sizes, but the one I have is 15cm in diameter. The adapter is designed to fit a USB B to micro USB adapter.
The one I have is from ebay, but I can only find the exact same model on Aliexpress now.
If you have a different USB connector with a different distance between the screws, let me know.

Note. Even though the glass cover comes from a light usually used in bathrooms or wetrooms in general, my adapter is not for use in such places. but merely to be used as an ornament on a shelf.

I have used a Wemos D1 Mini running WLED and the LED-ring is a 12-LED neopixel ring from Adafruit.

Printed in black PLA from German RepRap at 0.1mm on an Ultimaker Original. Printed with brim. Total printtime roughly 9½ hours.

Ultimaker

Ultimaker Original

No

No

0.1

25%

Designed in Fusion 360, Custom threads