It’s super-easy, and watching it dry on the pavement is somehow mesmerizing. For each color, you’ll need:
Step 1.) Mix the water and color.
Step 2.) Gradually add corn starch while stirring.
VOILA! (No, seriously, that’s it!) Apply using big, fat paintbrushes and watch the paint dry into chalk-like markings on the driveway or sidewalk. It’ll wash away easily with water. While we loved decorating the sidewalk with hearts and splatters, but also consider making semi-permanent game boards on your driveway, like Four Square, Hopscotch or Twister!