We have covered plenty of cool PC Case mods here in the past. The Sandstone PC Case mod is pretty special though. It gives your computer that cool, prehistoric look. It was developed by Aram Bartholl. It is made out of sandstone. When paired with an old monitor, a 3.5″ floppy drive, and a PS/2 keyboard, it does feel ancient. The Sandstone PC Casemod is a worth of art though.