Take a piece of heavy paper like manila tag or cardstock.......... Using pastels color little bits at a time in bright colors.
Color in the entire page.
Take some black acrylic paint and paint over entire page.
Using a wooden skewer or toothpick scratch in your design.
Here are the finished results from Grade 2. We were following the book and scratching in a grid design but you can easily do a full picture like the one posted at the beginning. Thicker lines tend to look better.