Christmas, that most magical time of the year, is but four days away (or five sleeps, if you prefer)! So I think I have just enough time to squeeze in another seasonal activity for your class!
OK, so it's nothing amazingly complex, but great for teaching shapes and colours (or even as a review of them). Give each student a worksheet and allow them access to coloured pencils or pens. Then, all they have to do, is look at the guide at the bottom of the page and colour each shape the corresponding colour! When they have finished they will be left with a delightful, Christmas Scene to take home, or display in the classroom!