Hello Raye!
Welcome to the Disney Parks Moms Panel! I can't think of a more magical place to celebrate a birthday than Walt Disney World, and what's a birthday without cake?
You have a couple yummy options for placing an order. First, there is a
Cake Hotline specifically for this purpose. Just call (407) 827-2253 at least 72 hours in advance and you can place an order for a custom cake to be delivered to most table-service restaurants. I'm not sure if they deliver to Disney Resort hotel rooms, but it's worth asking.
The fabulous folks at
Disney Floral & Gifts also have a great selection of cakes and other in-room celebrations available. (Look for the cakes under Characters & Themes, but also be sure to check out the ways they have to add even more pixie dust to your party.) I've worked with the Dream Makers there on a few occasions and they've always made the experience practically perfect in every way.
I hope that helps as you make your party plans, Raye! If you have any other questions, we'd love to help, so please visit us again any time.
Beth