This case is composed 6 pieces of clear acrylic sheets, and can hold your Witty Pi (or Witty Pi 2) and Raspberry Pi together. The acrylic sheets are 3mm thick and the case can protect your Witty Pi + Raspberry Pi very well.
The top cover can be opened so you can setup the jumpers or replace the battery. There is also a window for GPIO header, so you can still access all GPIO pins.
Here is an instruction for assembly the acrylic case: http://www.uugear.com/portfolio/assembly-guide-acrylic-case-for-witty-pi-raspberry-pi/
This case can fit both Witty Pi and Witty Pi 2.