http://good-times.webshots.com/slideshow/569258209VRzQBzfirst, get your self some fox or large cold climate grey squirells...
skin them out.
scrape off all the fat/meat etc.
pin/nail out on a board.
work in coarse kosher/sea salt very good.
let stand until it looks and feels like cardboard, this will take about 2 weeks.
take out pins/nails,and scrape off salt.
cut in an ovular shape about the size of your hand.
start cutting twords the center of the skin in a pinwheel fashion until you run out of skin, cut your strips about 1/4 wide,no less,and as uniform as you can!
then soak the strip in warm water for about an hour.
i then take a stick about the size of the nock end of the bow i am making it for and even out the strips so that fur side is laying on the stick side.
i then tie a figure of eight knot at the end that has the two loose pcs.
take the stick and wedge it between two trees or two nails about as high as you can reach,and with another long and smooth"ish" stick slide in under the figure of eight knot.
start twisting slowly and gently pulling the lengths so the string id uniform.
now the string is getting tight you want to hand a weight to stretch out the skin fibers/and tendounus tissue by adding weight to the long stick and twist until it just starts to "kink" up or roll onto itself and then back it of a couple of turns...
now secure the weight so it doesnt slip or unravel on you when you leave it in a dry airy place,your rafters in an attic, a garage your home ,teepee, etc.
hahaha.
wait for about 4 days and you will have a tight "hairy string"....you can trim or leave it on for natural string silencers.
you will notice that the string diamater has shrunk about by a third!!!
now soak the knot end in some cold water to make plyable and make another figure of eight LOOP KNOT, IN IT THE LENGTH OF THE FINISHED STRING LENGTH.
enjoy your string.
jamie