INGREDIENTS
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5 cups sand (approx. 10 lbs) ~ free or nearly free, if you have it
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1.2 cups corn starch (approx. 1 cup + 3 tablespoons)
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1/2 teaspoon dish soap (e.g. Dawn Dishwashing Liquid)
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water (about 1 cup)
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optional: 1 teaspoon Tea Tree Oil (for antibacterial properties)