Abstract: A tool (10) is provided for creating an indentation or furrow in the portion of a neck tie (20) that flows down and out of the knot (22) formed when the neck tie is tied around a human neck. The tool includes a sheet of flexible material (12) that is bent, folded or curved along midline so as to create a concave and convex surface in the approximate shape of a hollow half cylinder without ends or a piece of tubing split in half along its length. A fin (14) runs along the midline of the sheet of flexible material on its concave surface and bisects the cavity created by the concave surface of the sheet of flexible material. An elongate probe, (16) projects from one end of the fin. The end of the elongate probe (18) is inserted into the bottom of the untightened knot in the necktie and pushed upward until it protrudes from the top of the knot. The fin and concave surface of the sheet of flexible material are then pressed into the surface of the tie that hangs below the knot and faces out and away from the chest.