Watercolors and crayons are so fun to play with! I'm always fascinated with the effect of the crayons resisting the paint. It's awesome!
Here's a Fall Art Project using this fun resist method that you can do with your kids:
(Too bad I can't take the credit for coming up with this cool idea. The original idea comes from Elementary Art Fun.)
White Card Stock or Watercolor Paper
Step 1: Draw leaf outlines on your paper with crayon. You can look at a leaf or trace one to help you out. Then draw the veins inside each leaf.
Step 2: With watercolors and a brush, paint the leaves with pretty fall looking colors. Try to stay inside the lines for this one, but you don't have to worry about being perfect here.
Step 3: Let the paint dry and you are done!