Good post Aussie
Couple of things I haven't heard of that will be neat tricks for the bag.
Another one for drawing skin I forgot was Alum powder.
Take an old skillet and pour some Alum powder into a lump..heat until it disolves into liquid...then it will harden again into a off colored cookie. Take the Alum cookie out and crush it back to a powder. I like to dissolve the powder in clean water or saline and make a paste. Pour or administer the paste to the severed skin area and in several hours of application the skin will draw considerably. Usually enough to get some staples in. Works great with taunt skin cuts in bend of legs..ect.
I will have to try out the ice water method sounds like a possible shortcut.
