Remember the tale of Sisyphus?  He was that Greek dude condemned by the gods to roll a rock to the top of a mountain, whence the stone would fall back to the bottom. This continued for quite a while, pretty much till eternity, probably still going on.  Damn, those guys up there on Mount Olympus sure know how to deliver punishment. If you want your personal rock and roller, try this brick display for size. There’s something oddly mesmerising about watching the endless agony of Sisyphus displayed in brick form in this LEGO Kinetic Sculpture. You can check the build guide here and do it yourself with the instructions in the video link, originally built by Jason Allemann.
Check out Adam Savage of MythBusters fame build the LEGO Sisyphus Kinetic Sculpture.