I like this spinning gif made by Ukrainian artist Yuriy MiRon. It's like the Bowser Boss's circle of hell -- the level where villains must turn and turn and turn and turn around and around again and again for all eternity. Will teach a dude not to mess with Mario, if you ask me.
See more of MiRon's spinning (and still) creations here. It's particularly fun to open up the archive and look at all of the thumbnails movin' and groovin' at the same time.