how to make plaster molds
To make plaster, approximately 1 1/2 cups of boiling water are salted and mixed with 4 cups of flour. The mixture is set aside until it is cool enough to handle, yet still warm to the touch. The plaster is then molded into the desired shape by hand or by using specially designed arts-and-crafts molds. An alternate plaster of Paris recipe calls for glue and water. To make this version, two parts of diluted white glue are mixed with one part warm water.