Liquid Nitrogen and ping pong balls

I came back home last night from a intense 3 day workshop for my other passion (art and jewelry) and my husband and son showed me this cool video.   I love liquid nitrogen although I havent done many cool things with it yet.  Its cool to see how you can freeze a banana in it within seconds or make awesome ice cream with it very quickly but this video tops them all.


 Not sure I will try this any time soon but boy wouldn't this be cool one to try...

Made for each other   - experiment using a bottle of liquid nitrogen and 1500 ping-pong balls... Enjoy!