We've covered our fair share of PC modifications here on Crave, but no other case has ever made me drool and mutter, "Must...have..." besides this monolithic beauty.
Luke Andersen, a computer science major from Rensselaer Polytechnic Institute, built the PC completely out of black Lego bricks. He first created the plans for his PC via a simple CAD program. Then he bought 1,238 Lego pieces (for a total of $140) to assemble his masterpiece, complete with a removable panel so he can get in there to upgrade the PC without destroying the whole thing. Check out this YouTube video of him creating the device from scratch:
What's more, if you want to give this a go yourself, Luke has kindly made his CAD models available to download. Mucho impressivo, Luke. We salute you.