From what I can tell from your signature, you're staying at the All Stars -- I would imagine that you might not be able to get a cake delivered to your room as there is no room service available at any of the All Star resorts other than Pizza delivery from the food court.
You could though request a special cake to be "delivered" at a table service restaurant ahead of time by calling the Cake Hotline -- unfortunately, I don't have the number in front of me.
Here's the Cake Hotline Info --
New "Cake Hotline" for ordering special occassion cakes!
5/29/07: DINE: New "Cake Hotline" for Guests requesting celebratory cakes at most Table Service dining locations. The Cake Hotline number is 407-827-2253 and requires 48 hours notice.
You could have something delivered from the Disney Florist and that would be placed in your room -- at least we had something placed in our room -- but we were at the Wilderness Lodge -- but am guessing that the same would apply to an All Star room.
Another option would be to mail a package from home ahead of time and it would be at the resort upon your arrival or within a day or two of your arrival.
Probably not exactly what you wanted to hear, but I'm hoping someone else may have a better answer for you.
