This tip is for making a picture with chalk on paper. When finished, spray with cheap hairspray. The hairspray puts a fine coat of lacquer on the paper and you won't get chalk dust all over.
Uses for Hairspray
Making Chalk Drawings
Cleaning Chalk Stains Off Carpet?
Homemade Stepping Stones
Use Chalk to Deter Ants
Using Hairspray for Ink Stains
Homemade Sidewalk Chalk
Free Printable Dollhouse and Dollhouse Furniture Plans?