A credit-card sized ceramic hot-stone that can be heated and put in your wallet, so you'll always have a hot pocket on a cold Winter's morning. The combination of leather, paper and plastic should be enough insulation to keep it warm for some time (though not to combustible levels!)
-- simonj, Jul 08 2008

Would the hot stone MELT the many vital plastic cards in the wallet?
-- g00r, Jul 09 2008


Doubt it.
-- simonj, Jul 09 2008


kinda like when cash burns a hole in your pocket?

slides pastry simonj's way [+]
-- evilpenguin, Jul 10 2008


//Would the hot stone MELT the ..cards//

Not any more than the transactions on them...
:-(
-- Jinbish, Jul 10 2008


The heat from my credit card from all those transactions keeps my wallet nice and warm already.
-- Cedar Park, Jul 10 2008


Two Words: "Curie Point"
-- 8th of 7, Jul 10 2008


Oooooh - comes with a free non-invasive vasectomy. I'll take two.
-- Custardguts, Jul 10 2008


anybody else read "Happiness is a warm mallet" or is it just me.
-- FlyingToaster, Jul 10 2008


Mallets are Happiness when warm, [FT].
-- Cedar Park, Jul 11 2008


What about 'Happiness is a warm mullet"? Either a self-heating but rather unfashionable hairpiece for use on cold winter nights or else something completely different to do with fish.
-- DrBob, Jul 11 2008


...but I keep my wallet in my purse...
-- xandram, Jul 12 2008



random, halfbakery