I've seen a lot of useless interactive sculptures around my time, but this one is actually one worth stopping by. All you have to do with this invention is you grab all the pebbles at the base, and then you grab them, and you drop them in through the top of a bed of a million needles, and you would think that it would probably just be not enjoying or satisfying, but just listen to this sound. Yeah, yeah, it sounds crazy, right? You see, you were judging it before you've seen it. It just sounds... Gossip. It reminds me back when I used to go on my grandma's house and she would have cookies on the window sill, and then she would smack my hand because I tried to grab the cookies. I'm sorry, grab it!