Sidewalk chalk recipe The recipe is simple: 125 ml of plaster of Paris and 65 ml of cold water. For each color of chalk, you pour water into a disposable cup and you add liquid watercolor. You could also use food coloring or tempera paint.
Homemade floam is easy to make and SO FUN! It can be molded and shaped but is also squishy and gooey. It has a really unique texture that is irresistible to touch. It is also much cheaper than the store bought stuff!