When the water dries, the picture will sparkle. Keep everything still. Color hard with the side of the crayon. Make crayon shavings by peeling off the jackets of various colored crayons and inserting them in a pencil sharpener. Then spread glue over a sheet of paper, or moisten the sticky side of a length of paper tape and press the crayon shavings into an interesting design or picture on the paper.
Children cover all of the white paper with a heavy layer of colored chalk.
With a black crayon color heavily over the chalk. Put a second piece of white paper on top of the colored paper. Draw a design or picture with pencil, pressing hard. Separate the drawings and there will be a positive and a reverse. Let the children draw as they like.