I loved doing this in art class. Art With Mr. E: Line Design w/Shading - Grade Very cool, fun art shading project from Art With Mr. E. he's an elementary art specialist. Try this with your kids (but I think grown ups would enjoy this too).
stained glass watercolor tree, a beautiful project. focus on drawing of tree (use liners to create raised lines over your pencil drawing), once dry add wet on wet for the colours section for section (as if u were doing a stained glass window).