I did search but did not find it,
Here is a wiki link to a ketoh (Navajo name) or bow guard. They are also called bracers, but I am referring bow guards. For game realism, improved accuracy, slight armor increase, maybe hand to hand accuracy decrease. Construction should require turquoise and amber (in honor of the Navajo people), to bad we don't have coral.
http://en.wikipedia.org/wiki/Bracer
Just an idea, this item could require 2 skills to complete. Crafting for the silver work, to make one piece. Then manufacturing for the leather work to complete it.