This is a simple idea. Why not have your students make and write nice Christmas cards for each other?
Simply use these templates or have them draw their own.
First, review how to write a card by doing one as a whole class on the board. This will give them an idea of the appropriate register and vocabulary.
One caution – make sure you assign or draw names. That way, everyone in the class will get a card!
The teacher can be the postman!
X-mas Cards,