Here's an idea for some messy fun to while away a long winter afternoon!
You will need:
Construction paper
Brown (mix from green and red) and white poster paint
Instructions:
With the side of your hand, paint a few brown vertical lines on your paper. These are your tree trunks. With the sides of your fingers, add some lines coming out from each as the branches.
Finish the scene with fingerprints of white snow all over the ground and trees.