Incandescent Light Bulbs make good hand warmers too, when it is cold
weather.Get an Incandescent Light Bulb and glue a Light Bulb socket on
to a good Bulb.Get a bowl of sand and put the Light Bulb in the bowl of
sand so that the glued on socket is sticking up at an angle.Plug in the
Light Bulb and turn it on, hide the cord real good, you can drill a hole
in a plastic or wooden bowl for the cord.

tHat is a ''Trick'' I once saw in a Popular Science magazine back in the
1950s.
cuhulin