We will be celebrating my daughter's birthday on our cruise in June (Royal Princess, Voyage of the Glaciers). Her birthday is noted on our reservation, and I know they will bring a slice of cake and sing Happy Birthday in the MDR. That said, we have a large group (10 people), and my daughter has also requested an actual full-sized cake. Other than the few options I've seen that you can pre-order on the website (Coconut Confetti, Chocolate Mocha, & Vanilla Celebration cake), is it possible to order a more customized cake? Thank you in advance!!