Made this cake for the high school graduates who go to our church . . . they had a big group party. The cake itself is 3 layers, half vanilla with vanilla creme filling and half chocolate fudge with chocolate mousse filling. It was really 2 11"x15" cakes set side by side to make 1 BIG cake (15"x22"). The figures, books and grad cap are all rice krispy treat covered with marshmallow fondant. The only thing you can't eat is the square on top of the big grad cap, as it is cardboard covered in fondant. The kids loved their cake and lots of people asked me where I "bought" the graduation figures, lol. My own husband thought they were plastic! Took a long time, but was worth it to see them so happy over it.