There is a ceremony involved with a quinceañera as well so I am curious what we can do on board the ship. She is turning 10 March-2013 so we have five years to plan. :-) Another relative's DD chose a trip to Hawaii instead of a party so this would not be too out the ordinary for DH family. We would allow DD to invite a few select friends to come along.
She seems excited about the idea right now. We have to decide what we are going to do so we can make plans and the sponsors can also plan accordingly.