Add color to this no-cook dough using ingredients from your kitchen, and you won't have to worry if some ends up in your toddler's mouth (though the taste probably won't be to her liking).
In a medium-size bowl, combine the flour and salt. Pour in the oil and your chosen natural dye, and stir well.
Knead the dough on a floured surface for a few minutes. If the clay is too soft, add a bit more flour.
Store the clay in airtight containers in the refrigerator.