Swiss Army Crescent Wrench

This is a very rough, work in progress mockup for a friend. Many mechanics, at least the ones I work with, carry on their person, three things:

A key chain or ring, often on a lanyard
A multitool
A crescent wrench

A colleague has long had the idea in his head that one could combine two or more of these. He ultimately wants to see a multitool built into the handle of a crescent wrench so that you have most of the tools on hand to attack most small jobs without having to run around and fin