Throwable Firework Stars

Firework Stars are only transitional objects (they only serve one craft in the game), so you could make the stars throwable (like snowballs or chicken eggs) and when if it hit any block or entity, explode in a cloud of smoke that causes no damage. And, depending on the size of the charge, the disciplation time changes then, the color of the smoke cloud becomes the same color as the firework star.