Star might give Clark a little medicine bag with the crystals in them (and maybe even some herbs like 'forget-me-not') or have him keep them in his pocket. They need to stay close to his body. At night they would go in or under his pillow. She might even give him several sets - one for his pillow, one for his pocket, and one for his desk. Star strikes me as a 'more the merrier' type.
