Hosting a party at Disney World or Disneyland in 2026 involves a choice between "official" event packages and "do-it-yourself" celebrations. For a formal occasion like a birthday or anniversary, you can book a celebration cake to be delivered to most table-service restaurants by calling the Disney Cake Ordering Hotline at least 72 hours in advance. For larger, private events, Disney Meetings & Events offers high-end catering and venue rentals, ranging from hotel ballrooms to private terraces overlooking fireworks. However, many guests choose to "party" during regular park hours by coordinating matching t-shirts, wearing "Celebration Buttons" (available for free at Guest Relations), and utilizing the Disney Genie+ or Lightning Lane systems to ensure the group stays together on rides. It is important to note that Disney has strict rules against "unauthorized" organized gatherings; you cannot bring in outside catering, large decorations, or loud music. If you want a dedicated party atmosphere, attending one of the hard-ticket events like Mickey’s Not-So-Scary Halloween Party provides the ultimate group experience with exclusive parades, treats, and themed entertainment.