Roll out each colored fondant until they’re about ¼ of an inch thick each. Cut out 12 small rectangles (the same size that you cut for the top of your tie), and then press it onto the cookie.
Using the same technique you used to shape the cookies into ties (ie.: with the cookie cutter and the paring knife), cut out 12 necktie shapes out of your burgundy fondant. Press the fondant shape onto each cookie.
Cut out strips from your yellow fondant and place on top of each cookie. Trim accordingly.