Sidewalk Chalk

Plaster of Paris
Wax paper
Cups
Food coloring

1.) Mix a little of this and that! Water with Plaster of Paris. Creating a thick goo like the consistency of Peanut Butter.
2.) Mix and add food coloring
3.) Add mixture to molds
4.) Let them dry for a few hours and then pop them out!

More instructions at: http://www.howdoesshe.com/how-to-make-sidewalk-chalk