If you’ve looked at Disney discussion boards like Disboards.com to prepare for a Disney cruise, you might have seen forum posts about decorating the magnetic stateroom doors. While I can vouch that it is possible, my tip is to use strong magnets, really strong magnets.
The stateroom doors on the Disney Wonder are thick and barely magnetic. Large surface area magnets like a flat sheet work well, but smaller “button” magnets are easily dislodged. When your door slams, the average magnet will fall off, littering the hallway. Strong Like Bull magnets would definitely stick, but at their value, I wouldn’t leave these unattended.
Bring along extra magnets if possible and also tape to attach them to your door decorations. Even though we tested our decorations on a refrigerator, they didn’t stick to the Disney doors without extra magnets added on.
Here’s our door that was remade several times after our decorations fell off.
Oh, don’t forget Disney’s policy that you can’t use any type of adhesives (like tape) on the door themselves.