Age: 18-40 months
- 4 cups sand
- 2 cups cornstarch
- 1 tablespoon plus 1 teaspoon cream of tarter
- 3 cups hot water
- Mix all ingredients together and let cool.
- Your child can use the mixture to build a sand castle by hand, or he can use shallow plastic containers for molds. Coat the containers with Vaseline before using.
- Give the castle 3 days to dry.