Back in April, Burger King rolled out a Froot Loops milkshake.  And people must’ve really liked the idea of blending sugary cereal into sugary ice cream, because BK just went for another concoction.  A new Lucky Charms milkshake just went on sale at Burger King.  It’s made out of vanilla ice cream, a sweet syrup, and pieces of the oats AND marshmallows from Lucky Charms.  You can get them right now, and Burger King says they’ll be available for a limited time.