Mark Jones spent 10 months modifying his computer to look like something from an H.P. Lovecraft story, with brilliant features like a "reset button in left eye." It's not meant to be anything specific but rather a general amalgamation of Lovecraftian stuff:
This Case Mod was inspired by the works of horror writer H.P. Lovecraft. A lot of his tales in the "Cthulhu Mythos" dealt with Elder Gods and Things That Man Was Not Meant To Know. This design is not a literal depiction of any one thing, more of an interpretation of a PC that has transformed. The name, which seemed appropriate, was inspired by Lovecraft's Elder God, Hastur, He Who Must Not Be Named. (least you accidentally summon him to you; which never ended well)He did most of the work back in 2003 with some intervening updates over the years. He has a detailed description and more pics on his Web site of how it was done.