In a shallow bowl, stir together the ground cinnamon and sugar and set aside. In a small bowl, whisk together 1 cup confectioners' sugar, 2 tablespoons of milk and 1 teaspoon of vanilla extract, set aside. This is the vanilla icing. In another bowl, whisk together 1 cup confectioners' sugar, 1/4 cup of cocoa powder and 3 tablespoons of milk and set aside. This is the chocolate icing.