Remember Spin Art, that childhood game that let you create fantastic, colorful works of art over a spinning piece of paper? Well, McDonald's has brought back those nostalgic memories via a new application that celebrates its new Real Fruit Smoothies. The app allows users to "spin something cool" by selecting a color (or colors), choosing a brush speed and letting it loose. (All colors are inspired by the new smoothies themselves.) We spun a kaleidoscope of happy blends on ours. Tribal DDB created the app, and users can also post and share their latest streaks of creativity—and "spread the real fruit smoothie word"—on social networking sites like Facebook.