My Friends used this method for flowers on cupcakes and food coloring for color, as the day went on the prettier the color got! Amazing! It’s one perfect food decorating idea and is surprisingly easy. You need cornstarch to keep them from sticking to your fingers, scissors for cutting, and food coloring spray. Using colored marshmallows would save you a step since they already come in pretty pastel colors. Or you can use white marshmallows and add sugar glitters to make the cake more fascinating.