Over the Hill theme cakes would be perfect to celebrate a middle aged person’s birthday. There is no specific age for ‘over the hill’ style birthday celebration. However, it is celebrated when a person is on the threshold of his prime age. In most cases, over the hill theme carry a decoration that signifies a hill climb theme. Still, it is not necessary to give that specific look to decorate an over the hill theme cake and what it represents. Take a look at the images below to get an idea about decoration variations.