In Win shows off its limited edition D-Frame case at CES 2013. The case reminds me a bit of a roll cage, it's largely an open-air case that consists of steel bars and two sheets of plexi-glass.
The design allows you to both use it as an open-ended case while placing it by its sides (for overclocking), or upright, for spreading gobs and gobs of jelly at LAN-parties. Measuring about 305 x D668 x 482 mm, the D-Frame fits in standard ATX, micro-ATX, and mini-ITX motherboards, with room for long PSUs, a 5.25-inch drive, three 3.5-inch ones, and two 2.5-inchers.