Are You Seeing This, Mr. Attanasio?
I've seen Olympic Opening and Closing ceremonies, live and in person. I've heard the roar of the old Chicago Stadium organ, replete with a full house cheering like made halfway thru the National Anthem. I've been there when the jets fly low over a sold-out Lambeau Field just before kickoff.
I've seen some cool things as a sports fan--but this is pretty damn slick. And, there isn't a single watt of electricity burned to make it happen, so it poses no threat to the environment (it's Al-Gore-Nobel-friendly)!
"South Korea: boys cheering for their soccer teams. the most amazing thing is that they do this with their CLOTHES (not holding up cards). they have a jacket that is one color on the back, one on the front, and that they can open or close to show a third color shirt on the inside. One school has also figured out how to use their pants to make shading."