My kids art class started off our fall schedule with a fun pumpkin zentangle. I showed them how to draw a simple dimensional pumpkin and how to layer them to create a grouping. And then they were able to fill in the spaces with different patterns. We used sharpie markers so that the ink wouldn't bleed when we added watercolors. I showed my students how to layer colors with watercolor pencils (darker colors in the creases and along edges, lighter colors in center) and then they added water to blend. They did such a good job with their drawings that I had several parents ask if they really drew them! What a compliment! They did it all on their own (what's the point in taking a class if the teacher does all the work?). I have found that kids can do just about any project as long as you take time to break it down into easy steps. And it doesn't hurt that I have some super talented kids too!
Here is my YouTube Tutorial for this project.