i went on allears and found this
… i thought it was interesting.
My Mini-Cake Surprise includes your own mini celebration cake with a special treat, packaged one of three ways: in a Sorcerer Mickey Celebration Bucket (Disneyland Resort only), Disney Princess Jewelry Box or Disney Pirate Treasure Chest. Available at Walt Disney World character dining and buffet locations; at Disneyland Resort in full-service restaurants, character dining and through room service.
Guests who prefer a Disney Custom Bakery Cake can order at least 48 hours in advance of their celebration. Choices include a custom cake (6-inch, 8-inch, 10-inch and quarter sheet), an 8-inch Mickey Mouse cake or a themed cake with enhanced inscription and edible decorations (8-inch, 10-inch and quarter sheet), available at most Walt Disney World table-service restaurants and all table-service restaurants at Disneyland Resort. To order at Walt Disney World Resort, call the cake ordering hotline at 407-827-2253.