So I have built and bought several Raspberry Pi cases.
Before I could get a RasPi I owned several high quality paper cases.
Once it came out I graduated to cardboard, leather, Legos, and purchased cases.
I would buy a Pi and create or buy a new case.
I just received the new RasPi Model B+ so I started a case search.
While searching I remembered I bought some nylon screws and nuts for the Pi camera, they were the wrong size(d'oh!!) so I threw them in the 'pile of stuff to use later'.
Well later came today as they are the perfect size for the new Rasberry Pi model B+
I present the Twin RasPi B+ Rack "Case"
("Case" Disclaimer - this is an open air style case like the Acrylic VESA TV mounts)