Find it on Etsy! http://www.etsy.com/view_listing.php?listing_id=6294421
Step 1: Supplies
Step 2: Measure and Cut the Fabric
To make this easier, I took the long edge of the material and measured up about 3 1/2 inches. I folded it up that high and ironed it flat. Then, I measured the 26 1/2 inches and cut along the rough edge of the fabric until I reached that length before cutting down straight.
This leaves you with a long rectangle, but I wanted it to be a bit prettier, so I folded it in half again and "smoothed" down the ends by starting about five inches from the middle and trimming it smoothly until I had cut off about an inch at the ends. It makes the final product look like a hill when it's spread out flat. You can leave it as a big rectangle if you don't feel like "prettying" it up like I did.
Step 3: Main Seam
Turn back right side out and press the seam flat.
Step 4: Rice Pouches
Sew across both layers of fabric at the first pin, from top to bottom, making sure you backstitch at each end to make your stitches strong. *HINT* Make sure you take the pin out before the sewing machine needle gets to it or you could break your needle!
This forms one side of a rice pouch. Take not quite an 1/8th of a cup of rice and pour it in the farthest end of the material from the seam you just made. I used a funnel to make sure the rice went in easier with less spilling. Make sure it's just enough rice to basically cover the area, but not be hard. You want it to have some room to move a little bit.
Shake the rice down and sew across the material where the next pin is. Try not to sew over the rice. This traps the rice into a pouch so that it can't roll around all over the place if the person wearing the band rolls over. Continue to pour rice in and stitch across where the next pin is until you have done all the pins and have five pouches of rice.
Step 5: The Ends
At each end, turn under about 1/4 inch and sew across to keep the rough edges from fraying.
Cut a couple of inches of velcro, enough that it can overlap and fit different sizes of heads, if you want. Place each piece of velcro on the fabric with the soft side towards the head and the rough side facing out. Sew in place, being sure to double stitch the corners for added strength. *HINT* To make smooth corner transitions, make sure needle is down when you stop on a side, lift foot and turn material 90 degrees, replace foot and sew next side. Repeat for each side and your corners should be neat and tidy instead of round.
Step 6: Freeze and Enjoy
Whenever your head hurts, wrap band around your head and let the cool ease your pain!