A hot new site in Australia has captured the world’s attention. It’s called “ship your enemies glitter” and it’s fiendishly clever. You pay $10 and they anonymously ship your enemy an envelope full of glitter. Inside a letter. The recipient pulls the letter out and – poof – glitter all over everything. And you know that stuff, just like beach sand, never comes off. How big an idea is this? Since social media momentum built two weeks ago, they’ve run out of all their supplies of glitter. Twice. And whom are you planning to send it to?