What you need:
A piece of cardboard or a paper plate, scissors,glue, some white card paper, colored paint, paint brush.
How to do it:
First cut from your cardboard or paper plate a circle shape leaving a hole in the middle.
Cut some shapes of leaves and Christmas tree from your card paper.
Paint the leaves and the Christmas shapes with the color of your choice, let dry.
You can use a colored card paper but I think that it is much fun when you have to paint the card paper.
Finally attach with glue, the leaves and the Christmas tree shapes on your cardboard as you can see from the picture above.