In our house we use the corn bags ALL.THE.TIME!! The last batch we got we have literally heated them up sooo much so that the corn inside the bags is BURNT!! LOL So Instead of buying more of them we decided to make our own. Here is how it's done.
Choose your material....a good cotton or even a flannel is nice
1/3 of a yard will do two corn bags.
Cut it in half
Turn the fabric inside out and sew around the edges and make sure you leave.....
a 4 to 5 inch gap in which you will fill with the corn
turn your bag right side out and make sure you pull your corners out completely too
fill it up with corn or rice or flax seed and then sew it up.....very carefully. I sewed it on the machine but if you feel more comfortable you can do this final bit by hand. Purely your choice!
(NOTE: We use Deer Corn that we purchase at a local feed store)
Heat in microwave and ENJOY!
For this size, if you use corn I would recommend heating for 3 minutes. Test to see if it's warm enough. Depending upon your microwave some may require more time, some less time.