Here is a Pocket Portal, it doesn't do anything but sit in the 5th pocket or on a shelf among all the other gear you collect.  Solid brass polished insert,  Core is titanium, Stainless !/4"x1/4" inserts, scales are patinated brass with stainless steel binding screws. About 2" diameter by 3/8" thick

Pocket Portal Titanium Stainless Brass