Rainbow Layer Cake

This cake is just as fun on the inside when you cut into it as it is to color and decorate on the outside! I gave the birthday girl a blank canvas of white fondant and a pack of edible food coloring markers, and she was so thrilled with what she made. For her party, I made basic sugar cookies with a fondant round for all of the kids to color as well. I LOVE this idea for a birthday party...even for an adult! (Original idea found at sweetapolita).