Nature and all of its different textures make a great paint canvas. Painting bark is a wonderful way to have some process art fun.
I love finding canvases in unusual places. My daughter and I will paint on just about anything, so when my husband brought in a big box of bark to use as kindling for a fire this weekend, we jumped all over it. Painting on nature is a favorite of ours because you can find such a variety of textures. We have painted on flowers. We have painted on rocks. We have painted on leaves, acorns, pine cones and sticks, but painting bark was a first for us.