Sidewalk Chalk

3/4 cup warm water

2-3 tbsp.. washable tempera paint

1 1/2 cups plaster of Paris
Duct tape or masking tape

Large plastic mixing containers

Toilet tissue (or giftwrap) tubes cut into short sections

Prepare the chalk molds by covering one end of each tissue tube with duct tape and set aside. Pour the warm water into the mixing container, then sprinkle the plaster powder into the water a little at a time until it no longer dissolves. Stir this mixture until it is as thick as pudding. Add tempera paint to the plaster mixture and stir until blended. Pour the colored plaster into the tissue tubes. To prevent air bubbles, tap the side of each tube. Allow to dry for 1-2 days, then peel off the mold.
 

Soap Crayons project

1 3/4 Ivory Snow powder

1/4 cup water
Food coloring

Mix water and soap flakes together. Add food coloring until you get the desired color.. Put mixture into an ice cube tray. Allow to harden. Break or cut into pieces. This is a lot of fun for kids while taking a bath.