Bow tie

 were a type men's necktie in the shape of a bow. They could be either pre-tied or self tie. ''The Doctor's Eleventh incarnation would often state that "bowties are cool" "The Eleventh Hour", "Vincent and the Doctor" "The Lodger", "A Christmas Carol" et al, in spite of disagreement on the part of his companions "The Eleventh Hour", "The Lodger". ''