In quite an original move, Bart has used old, dead motherboards to plate his case after stripping it down, to create a kind of motherboard sculpture case mode, of sorts. Doesn't exactly serve any kind of purpose other than being a talking point and looking cool - but hey, it did that well enough for me to post it here, didn't it? Here's a quick pic:
Again, I will stress that it doesn't actually do anything. For a moment I thought perhaps that it was a kind of cluster system someone had built and managed to build a case mod that contained all of the motherboards, hard drives, etc from all of the clustered systems, but no its actually just a bunch of dead mobos nailed to a case. Still, its kind of original if nothing else....
More here and here.
Follow the links and have a look at the later pictures, especially where the neon lights have been added and you really get the full effect. This thing eventually starts looking like a droid from StarWars or something... Great one here.