Sew 2 pieces of fabric (measuring about 5 by 9 inches) together on 3 sides (leaving a short end open), outsides facing in.
If you do not have a sewing machine, this would be simple to hand stitch as well.
Combine 1 1/3 cup whole flax seeds with 2 1/2 tsp dried lavender.
Flip pillow right side out, and add mixture.
Fold ends in, and sew the open end shut.
To use, lie down and place pillow over your eyes. Breath in the relaxing lavender scent. Alternatively, you can cool it in the refrigerator before use which is ideal for tired, swollen, or puffy eyes, or heat it in the microwave for about 20 seconds to add warmth and enhance the scent.