This is my take on a case for the Minty Boost Kit (v3.0) from Adafruit (http://www.adafruit.com/products/14).
It has additional room for a small on/off switch and a 3mm LED.
This was originally uploaded to Thingiverse in Oct, 2013.
The author marked this model as their own original creation. Imported from Thingiverse.