To focus the children on avoiding temptation
The children will understand that by asking themselves What would Jesus do?, they can avoid temptation.
You can buy modeling clay at any craft store, or make it using the following recipe:
1 cup cornstarch
1 cup salt
1 cup cold water
Put the cornstarch, salt, and water in a pan over low heat. Stir until it begins to bubble. Remove from heat and stir in enough bread crumbs to thicken, and let cool. Knead the clay for a long time (5-10 minutes) until smooth and easy to twist. This helps the product not crumble when dry.
The children should use the paper plate to mold their clay. You can also use pieces of waxed paper.
Be sure to have the children write their names on the plates. (Because the clay takes awhile to dry, you will need a way to identify each child's artwork.)
If you like, after the medallions are dry, they can be painted. (You may want to paint them in a separate class).