I'm thinking that the birthday person is older, probably in university. Some day their prince will come.

If it weren't for the barely able to be made out lettering at the bottom (and there's so much in that sentence that could be double entendre) I would have assumed that this was a bridal shower cake. They have very sexually interesting party favors/decorations.

And yet, on the site this was posted, many people were mentioning that original Little Mermaid Disney video cover had a castle tower like these.