My friends and I were on the Conquest the first part of Dec. We were on the Rusty Wallace Nascar crusie so my friend made a bunch of magnets with Rusty's cars and Car numbers on them. We had them on our door then she snuck out to our friends doors at night and put them on their doors. We got so many comments on them. I even got a few phone calls from people who saw the doors and had been looking to contact us. People from the Cruise boards.
So the decorations can be fun. With the doors and vitrually everything in the room metal the magnets are great. We even had a couple on the wall in the room so we could leave each other notes.