First reaction: How the hell are people voting lame videos onto the HN front page? Ugh, this place it turning into Reddit.<p>Second reaction: OMG this is mesmerizing. Wait how much time did I just burn watching the entire thing?
From one of the comments, this needs to be a game / app. It has the feel of Magic Pen or Cut the Rope. My game dev skills are non-existent, but a game with these physics, blocks, magnets and marbles, etc, would be a fun playground. Create these kenetic sculptures and share, or modify them to pass a level.