Does anyone have any tips or good websites for making those microwavable rice bags?

Answer 1

Here's a step by step tutorial at about.com to make any size
http://frugalliving.about.com/od/healthandfirstaid/a/riceheatpad.htm
Here's the recipe for a scented one at recipesource.com

Spice Hot Pads


Amount Measure Ingredient -- Preparation Method
-------- ------------ --------------------------------
4 cinnamon sticks
2 tablespoons cloves
1 cup raw rice

Crush the cinnamon sticks and cloves. Mix with the uncooked rice. Place in a
cloth bag, about 7“ x 7”. Sew up the open end. Use as a hot pad, the scent
will come out when a hot dish is placed on the mat. You can substitute herbs
(herbal tea works well) for the spices. If you want to be more fancy,
carefully sew seams across the pad, so you end up with a criss-cross or
chessboard pattern. This will make the pad less floppy and easier to use.
Notes:You can also use feed corn or lentils instead of rice, for an even more
frugal gift. Cut back on the spices, and these make excellent heating pads.
You can heat them up in the microwave and put them in your bed in the winter.

Answer 2

Hello, My name is Glenn Kawesch and I take a large sock, fill it with rice and microwave it. It works great.

Glenn Kawesch

Answer 3

Take a clean sock, fill the foot with rice and tie a knot at the ankle.

Answer 4

I,ve made many of them. Just be sure to use cotton material. I,ve even used long white cotton socks for this.