http://www.shireofrockwall.org/library/stringer.pdf

Hope you've got Adobe Reader. You'll need it to view the instructions.

I made one that wasn't nearly that nice and fancy. I took an old, worn out Gorrila Grip arrow puller, cut the two halves apart, then cut two pieces off, about 1" long. Then I drilled holes through both of them. You've got to use a drill bigger than the hole size you need for the cord because the drill cuts a lot smaller hole in rubber than the drill size. I think I finally wound up using a 3/8" drill to get a 1/4" hole drilled through the stuff. Then I ran my cord through the hole, pulled out a loop about 10" long and tied tied it off. Did that for both ends.

Sit the rubber in the recurve area flat side down near the tip on the bottom limb andjust below the string loop on the top end and you know how to do the rest. Just like any other stringer. If the rubber tries to slip - mine did at first - just take some sandpaper and roughen the flat surface.