Affix to rear view mirror or a garland for central casting, otherwise open the plastic sleeve a little and put Mr Skittles under your seat or in a door bin for maximum fragrance life.
What does Mr Skittles smell like? A fruity explosion of dark fruit and peaches, blended in a smoothie shaker with a splash of rum, perhaps? Maybe. This air freshener smells of Born to be Mild shampoo in any case.