How amazing does this cake look? I love how simple it is, despite its complex appearance. If you aren't convinced you could pull it off, Jenn of Cookies, Cupcakes, and Cardio has some easier rainbow treats for you to try. My favorite is Jenn's no-bake rainbow cheesecake dip. All you have to do is mix together 16 ounces of cream cheese and 1/4 cup butter. Once it's mixed well, add 1/2 cup icing sugar and 2 tsps vanilla extract and mix again. Divide into six equal parts, and color each section a different color. Fill a piping bag with one color and make a layer in a serving bowl. Repeat for each color, making sure to touch the edges of the bowl with each color. You can serve with cookies, fruit, or anything else you want.