This is a case that I used for a USB lamp made of a Big Switch, a Teensy 2.0 and a NeoPixel ring.
The hole for the USB cable was made manually after printing.

The object can be tinkered in Tinkercad at https://www.tinkercad.com/things/kaxsd8IEZjN.

The Teensyduino source code can be found at https://github.com/jturcotte/system-monitor-lamp.