Here are two tree watercolour trunk templates I had designed to do this Triad Tree Watercolour Experiment with my son’s class. They are a great base for other painting/craft projects too, or even as a play dough mat (make green/pink play dough for foliage & flowers).
My daughter sat down at the kitchen table while I was making dinner and made pieces of artwork.
Trunk Template (printed on watercolour paper)
Glue on gems / Pom poms / Watercolour paint / Leaves / Acrylic paint
Click image below for the PDF file of the templates
We had a look in the craft box and my daughter decided on a gem tree and a watercolour tree.
See how to do paint a watercolour triad tree.