I did not use a seamless pattern. Here are the front and backs waiting to be sewn together.
Trim off the wings. The little triangle pieces sticking out. I call them wings. Take the two pieces with right sides together pin and sew. Make sure to leave a gap for turning the tie out. Clip your curves and turn out. Almost done!
Iron flat and push in the seam allowance along the gap. Pin the gap closed and hand stitch it close with the ladder stitch or whip stitch.