For "moon sand", mix 9 cups play sand (really fine sand you can find at Wal-Mart). Add 3 cups cornstarch and 2 1/4 to 2 1/2 cups water. Start with 2 1/4 cup and continue adding water until you have the desired consistency. Mix well. Cover and store in an airtight container. You may need to add a few tablespoons of water if it needs to be moistened.
By Monica from Cortez, CO
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