El Poquito from SmithFly

El Poquito is the little pocket that goes anywhere the angler wants it to go. A magnetic clasp on the back holds tight to anything (over the top of waders, waist bands, belts, shirt pockets etc.) and is also compatible with the SmithFly Switch Kit system. We used El Poquito to keep hemostats handy and nippers close at hand. The real beauty is that El Poquito frees you up from wearing a vest, but keeps the essential tools in better order than a lanyard around the neck. It is 100 percent made in the USA, and retails for $40.

Find more info at SmithFly.  More mentions of SmithFly on MidCurrent.