This little heating pads are filled with rice (or beans, or even birdseed) and warmed in the microwave to soothe aches, pains, and cramps. They can also be frozen to comfort tired eyes or minor burns. They are very, very easy to make and make a practical first project for a beginning sewer. I used cozy grey flannel to make mine, but any close-weave fabric works well. These are great scrap busters. As I found out this Christmas, they also make wonderful presents, easy to whip up and well received by all ages.
I found the easiest way to sew the top was to place a line of straight pins across the top of the rice, holding the rice down in the body of the pad, away from the top. (See picture if that doesn't make any sense). Then turn the top edges down into the body of the pad, and sew across the top, backstitching at the beginning and end of the seam. You'll probably need to hold the pad with one hand and feed the fabric through the sewing machine with the other.
Repeat for as many pads you wish to make, and then step back and bask in your awesomeness.
Please let me know what you think of this tutorial, if there is anything that is oddly worded or unclear, or even if it works out perfectly! Any feedback would be greatly helpful for when I try and write another tutorial. (Which should be soon.)