How to Make Homemade Plaster of Paris for Molds | eHow.com

Plaster of paris (usually just called plaster) is used to make molds, chalk and masks, as well as other craft projects. It acts like cement, but is more easily manipulated and remains pliable when dry. Plaster of paris is a simple material to make at home, and making it can be an enjoyable project. There are different ways to make plaster of paris,...