Yoshimoto Cube Blows My Mind then Fries My Brain [video]
gizmodo.com
gizmodo.com
http://en.wikipedia.org/wiki/Banach%E2%80%93Tarski_paradox
http://news.ycombinator.com/item?id=411043
Just kidding :)
It's a series of half-rectangular prisms (basically non-equilateral 3-sided pyramids) sticking out of a surface, folding onto one another. 2 of these sheets == 2 star thingies. Unfold + press together == rectangular cubes.
Big deal? I think not... Slow news day I guess, what with it being New Years Day and all.
http://www.instructables.com/id/Crazy-Star-Cube-!/
Looks to be an hour long project tops, requiring just starched paper and sellotape.