how can i make a reusable compact hand warmer?

i need it to last for a while and hen be able to heat it up. It also has to be thin and compact

Comments

[chiroptikitty]

http://www.instructables.com/id/Recycled-Hand-Warmer/

[Plasmana]

• Get some Sodium Acetate, put some of that stuff in a few zip-lock bags, then seal the zip-lock bag with another one.
• Then put the bags with some Sodium Acetate into a pot of boiling water.
• Wait for all of the crystals melt, then take the bags out.
• Then let it cool.
• Disturb the bag to crystalize the the liquid Sodium Acetate, this will give of a lot of heat when crystalizing.
• Then put the bags with crystalized Sodium Acetate in a pot of boiling water.
• You can repeat this process over and over.

[Jordo]

You could get some nichrome wire and run it through a pair of gloves, just hook it up to a 9v Battery. btw, you can buy nichrome wire online, I got mine from Ebay. But you can also get some from a hair drier or an old toaster. its the heating element.