Easy Watermelon Cake

Nice cake for a summer BBQ! I didn’t get a picture of it cut but I used white cake that I dyed red and I threw in some chocolate chips to make it look like the inside of a watermelon. The rest is all colored buttercream! The black you could buy I a tube or use gel coloring to get the black black color. I used sandwich bags for the white and the darker green. And smoothed it out with a hot knife the best I could. It was really easy and turned out to be a hit!