Printing a Pi 2 case

• I want to make a case that's more interesting to look at.
• I don't want it to have a raspberry logo on the top.

I will start with an existing design so that I don't have to code in all the openings. Then I can concentrate on style.

As usual I will create my design in Openscad http://openscad.org/

I searched on Thingiverse for "Openscad Raspberry Pi 2". The one I liked best is here: http://www.thingiverse.com/thing:763710

A 2D mechanical drawing is here: https://www.raspberrypi.org/documentation/hardware/raspberrypi/mechanical/Raspberry-Pi-B-Plus-V1.2-Mechanical-Drawing.pdf