An illustration of Two, 7-Eleven Slurpees on October 27, 2010 in Washington, DC. Global convenience store chain 7-Eleven has been getting some free advertising for its signature drink the Slurpee from none other than US President Barack Obama. Obama has used the Slurpee -- a thick, frozen, flavored beverage that is wildly popular with Americans -- in speeches on the campaign trail ahead of next week's midterm elections to illustrate just how obstructionist and ornery Republicans can be. At a rally at Bowie State University in Maryland this month, Obama said that while his Democratic Party was sweating and pushing to get the US economy out of a ditch, "the Republicans... are just standing there fanning themselves -- sipping on a Slurpee." (credit: Tim Sloan/AFP/GettyImages)