With tons of college kids running around wearing Barack Obama t-shirts and caps, you would think that clothing would be the hot seller for the campaign. Nope, guess again. The thing everyone wants: yard signs. Yep, it use to be that campaigns gave away these things but now they see a money making opportunity. The Obama camp said last week it had sold 34,000 online and estimates that it has sold another 20,000 on the ground. Of the campaigns left standing, John McCain and Hillary Clinton also have signs for sale. Who doesn’t sell signs? Mike Huckabee’s campaign, which hasn’t had much money throughout the horserace. Maybe the real money maker is yardsigns.