We were on the Wonder cruise Dec 2001 and there were lots of activities for everyone. For families they had a gingerbread house that you made completely. These weren't small by no matter, ours lasted on the ship, back to WDW for 4 days, flight back to VA and 2 weeks later we decided to let it go. For those that didn't want to worry about taking it with them could display it in the lobby area on a table they set out. The only concern we had was on debarkation day with the food laws. They didn't take the house from us and since it wasn't fresh we were okay.
The decorations were wonderful. The lobby was decorated with wreaths on the railings, a huge tree stood by the steps, down the hall near the resturants was a giant gingerbread house where they took portraits, up on the deck was a christmas tree tied to the what looked like the satilite dish, Mrs. Claus read "Twas the Night Before Christmas" to the children in the lobby one evening.
If I get some time I will scan the navigators in from the cruise. I can't wait to take this one as we signed up the day it was announced.