Abstract: A fabric scent diffuser that can be easily and strongly attached to a pet collar which is then worn by a pet with the portable scent diffuser providing an effective scent or vapor to the pet, yet can be removed when desired. The fabric scent diffuser has a fabric strap, absorbent material such as cotton to which a scent oil or solution is applied, and has a fabric cover over the absorbent material, all stitched together to hold the absorbent material and fabric cover in place on the fabric strap. Hook and loop fastener material are attached near the ends of the strap so that the fabric scent diffuser can be looped around a pet collar and secured with the hook and loop material. A kit with additional components, and methods of fabrication and use, are provided.