I haven't had a tree since I got my gang. There's just no way I can put one up without having to come home to a total mess. Tree down, ornaments all over. So, I just put other things up. Lights, I decorate a bookcase with some fake foliage and hang stuff on the walls. It's better than me worrying all day about what's happening at home, and heaven forbid if one of them swallowed something!
Good luck though. Maybe Rupert will show no interest in it.