The Christmas ornaments (available from Rudi) disappear too rapidly to allow anyone who isn't super-fast to decorate their Christmas tree properly or write seasonal greetings with the letters. I was going to decorate the tree then write "Happy Maplemas" and use it as my Christmas card to all Royallers, but... the ornaments kept vanishing, like regular drops do. IIRC, items placed on the Christmas Tree maps aren't supposed to disappear at a normal rate - I think they're supposed to stay until you leave the room, at least.