Graduation Cupcake Cake

This cake is made from white cupcakes. I started with a row of four cupcakes through the middle of the cap. Then I filled in with cupcakes to get this shape.
I have a really hard time making true red frosting, so I used frosting that already came red. The black frosting is also wilton black frosting that came mixed. I put it in my decorating tool and piped it on the cupcakes.

The diploma is just three cupcakes frosted together.