Next, sprinkle a good size amount of cornstarch into the shaving cream and mix well. Depending on your desired consistency, you may have to add lots. We used an entire box of cornstarch between two bins. Mixing it takes some time and patience and may require a helping hand depending on the age of the children.
The shaving cream/cornstarch mixture is mouldable and my daughter was eager to begin creating little creatures with the materials.
This was a very messy activity but it was easily cleaned as the mixture turns into a powder when dried. I just vacuumed it up!