Car Diffusers › Cowboy Car Diffuser Cowboy Car Diffuser $8.00 Rich, worn leather with deep, smoky undertones evokes the warmth of a saddle shop. Rugged, authentic, and undeniably bold. Vent Clip or Hanging: Vent Clip Hanging Add To Cart Added! Rich, worn leather with deep, smoky undertones evokes the warmth of a saddle shop. Rugged, authentic, and undeniably bold.