Stone Age Kitchen Towel Holder

Bring a piece of ancient history into your kitchen by printing this authentic stone age towel holder ;-)

If you are looking for a simpler, smaller design, have a look at http://www.thingiverse.com/thing:706767 as well!
But if you like cartoons, silly contraptions and don't mind sacrificing a few pen springs (see instructions), you know which one I'm gonna recommend...