I modified the great case by HansH to have mounting ears, some support for the SD card and get a better fit on everything, make it slightly thinner plastic and a covered USB connector as it looked a bit ugly just sticking out the top and back of the original case.
It also clips together a little more positively and has better alignment for the connectors.
And finally it has an experimental optical light guide for the on-board LED's
- Seperate Top and Bottom Stl's added - 23-6-2012 *
Print it out and give your Pi a new home.
It's not in OpenSCAD, it was all done in Sketchup.
Sketchup files and other lids added Aug 2012 :)