A while ago, there was that prank video featuring a hoverboard:
https://www.youtube.com/watch?v=A4vE_vpkr90
Well, the response to that actually inspired them to make the real thing. Now, I know, "it only works above some metals, etc". Well, is it hovering? Yes. It is different from a skateboard because it can spin around in one spot. Again, it's still very new stuff, but fuck it. It's a goddamn hoverboard. This is some futuristic shit.
Tony Hawk Rides World's First Real Hoverboard - Hendo Hover (https://www.youtube.com/watch?v=HSheVhmcYLA#ws)