Press the ends of the 2.5 inch x 5 inch rectangle wrong sides together, then sew the long side together. Turn right side out. Center the seam and press.
Fuse the Shape Flex interfacing to the WRONG side of the square. Sew one side, leaving an opening.
Center the seam and sew the sides. Trim the tips off the corners. Turn right side out through the opening, press.
Using double thread, in the center of the ‘bow’ take some big ¼ inch stitches and gather gently. Take a stitch and knot to secure.
Center the tie, pin in place and sew close to the edge on both sides. Sew the same direction and pinch the tie going through the feed dogs so it is the same shape on both sides and will stay symmetrical.
Use a safety pin to feed the elastic through the tie. Sew on one end, now you can check that it will go over your dog’s collar, then sew the other end. Trim extra elastic. Use the needle and thread again, and take some stitches to finish the loop.