Yellow cake with yellow butter cream frosting. Used Duff's butter cream fondant to make all the pieces of the plant cell. The nucleus is made of rice crispy treats with fondant around it. She made an A+ and voted most delicious and most original so she got 10 extra credits for all of my hard work LOL. She did help in decorating and I made her knead all the color into it. I figured that since she gave me 2 days notice that she signed up to make a plant cell cake that she could do the hard work. :)