Checking to make sure the frosting matched the lego...two bottles of food coloring worth!
This is not a tutorial. Well, maybe just a little one.
I greased a muffin tin and made the cupcakes for the actual cake without the cupcake holders so that they would be line-less. Then I sliced off the tops
[which you can see unfrosted below.] Then, I smoothed some of the red frosting on both the cake and the cupcakes. I was sure to insert toothpicks into the cake where I would place the cupcakes so they wouldn't slide on top of the cake. I then put the cupcakes upside down on the cake. And, did my best to smooth everything out with the few cake decorating tools I have.