Have you guys seen this? http://beheretimessquare.com/ You can post a pic and/or a message to a billboard in Times Square NYC. (Doesn't matter if you're outside the USA). I tried a few times around Xmas then forgot about it, but it's still on. Allegedly you get an email with a photo if your message is chosen ... NOT THAT I WOULD KNOW as none of mine seemed to pass muster. Do your worst. Post here if you get a result! Good Luck !!!
