Just finished ordering my cake. This thread was a great help, thank you Lurkyloo for all the key information!
8" chocolate cake with chocolate mousse filling from CR (Chef Brian was so nice!!) with "Welcome Nana & Papa" on the plate. Quoted price is $106. It will be delivered to the boat we booked for a Wishes Cruise.
The wonderful gentleman that took my order with Private Dining was giving me the long spiel about making changes up to 72 hours in advance, and I started to laugh. I told him not to worry, I was checking this off my to-do list. He started to laugh too and said "you wouldn't believe me about some of the changes people have wanted last minute... up to and including entirely different cakes."
Now my only worry is that it will be raining the night of our cruise and we'll be eating cake under ponchos