Well THIS one has a story.
It's a birthday cake (the happy birthday part is on the other side) for a coworker, and the "theme" of "be it ever so oily" refers to the oil tank in her home's basement. It burst. Or leaked. And I believe she and her husband were away at the time. So oil throughout the basement, lots of damage, and I think there was even more to it than that, but I didn't write it down.
Anyway, she and her husband had to live in a hotel while their home was cleaned up and cleaned out and repairs were made and all that. Quite the nightmare.
The cake was chocolate, and the frosting was peanutbutter. It was covered with fondant and decorated with royal icing.