I am interested in making handwarmers for my "barn mates"...something to reheat our hands after doing barn work in cold weather. I am making the kind that are square or rectangular and are filled with "a" substance that is able to be microwaved for heat.
I am making cover from flannel and embroidering designs on the cover.
Does anyone have a suggestion for what "filling" is to be used? And, what "filling" holds enough heat for a prolonged period of time?
In advance, thank you. Kelly
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