Although the Hulk is incredibly large, this cake is incredibly tiny... yet incredibly edible.
His body is only 6" round and his head is a mere 4" round cake bump. He is covered in a mean shade of green fondant though.
To complete this hulk's intimidating look, I added some shaggy black hair and a torn up loin-cloth-belt-type thing which is supposed to represent his shorts. A simple mean expression was what he needed next.