Question

A simple modeling clay recipe

Answer 1

1/2 cup of corn starch is needed per each cup of salt

Answer 2

Stir salt and water in a saucepan over heat 4-5 minutes.
Remove from heat; add cornstarch and cold water.
Stir until smooth; return to heat and cook until thick.
Allow the clay to cool, then shape as desired.
When dry, decorate with paint, markers, glitter, and so on.