Oh, my word, what a wonderful idea!! I have not seen one of those in years, but surely they could be found somewhere - and the disposable variety are very short-lived.

In that vein, I must applaud the toe-warmers, made similarly to the hand warmers, and perhps by the same company. I have a medical issue cold feet and lower legs. Discovered the toe warmers a couple years ago and fell in love with the comfort. Had to be outside in below freezing for a few hours. The pain was agonizing. Application of toe warms to my socks and all was immediately well. Can't recall how long the warmth lasted, but perhaps not longer than the handwarmers.

To which I will add - ThermaCare heat patches and other brands last eight to twelve hours, depending on brand. One of those applied just below the breastbone will warm the entire body very quickly. Just a word to the wise.

Back to the Zippo handwarmer - this is a marvelous idea - and worth looking for in all the right places.

Thank you, good AC, for the reminder!