Summary
Based off http://www.thingiverse.com/thing:1525669 ,
This case snapts together, no screws needed.
Features:
Hole for LEDs
Fits on exactly
Holes for power, USB, and battery
Hole for Audio but is so-so
Needs work:
Make an option to have open top for pins
Add power button hole and button
Printed with PLA, 0.2 height, no supports, you can probably tweak it