Tablet Layer Cake

I made this cake for my father-in-law, a doctor. He had a big birthday while visiting recently so I asked him how he'd like his cake decorated and he said "a pill." We both laughed; funny joke. Then I presented him with this:

The pill is labeled "Grandpaxil" and it's a 60 mg tablet...because I didn't have enough candles. Inside, it's a vanilla cake with my signature buttercream frosting. Now, take two slices and call me in the morning.