At first glance, this looks like a regular old sand box, with some neat lights in it. Look alittle closer and you see that the lights are pucks, that are interactive, and create fields that sound waves move off of. Look even closer, and you’ll see that those sound waves actually follow the contours of the sand, changing the tone of the noise as they go.
It’s actually pretty cleaver, and even though it serves no real purpose right now, I can see potential in it. Not much off the top of my head, but I bet with enough thinking, people could come up with some real fun uses for this. At least, uses for it that aren’t already covered by RADAR