"Buy from Trenan in Southern Third Street, his totems are reasonably strong. Those from the fourth floor pendulors are too difficult to burn in cleansings."Pendulums can be used to find all sorts of things related to what they're made of, and can be surprisingly precise. The craftsmanship doesn't really matter, a clam on a string will do, but will find too many things. This is the real art of pendulum-making; to create a pendulum that will find only what is sought.
— Gajikar, to a fellow collector
When I invented totems, it was clear that not just every idiot could make good ones, and I doubted all collectors had the time to make them themselves, and so "Pendelmacher" were invented. I always liked the idea of holding pendulums over maps to find a specific site or item. And because many gems and metals have certain esoteric properties, there would be someone who makes special pendulums for finding water or Area thresholds or whatever.