The Holidays in my office aren't really decorated too much - last year I put clings on some windows in our cube space and brought in a poinsetta that I didn't really want to keep at the house.
That flower is doing pretty well, it even got some red leaves again this year. I didn't do any of the "proper" poinsetta preparations to make sure that it turned, but there must be the right mix of darkness and atmosphere in the office to make it happen a little bit naturally.
I also did a progressive holiday scene drawing on the white board last year, but didn't think about taking pictures until I was halfway through the season. This year I remembered to take the pictures, so let's see if the story makes sense to you.