I've been collecting
smashed penny souvenirs from my game town (San Francisco) for use as Fate Point tokens. Not every city has them, but most cities with a bit of tourism do.
I just realized one possible game use: sympathetic links. I noticed that when the machine smashes a penny, a bit of the copper gets worn off. The machine has a wire or plate which scrapes away the shavings, presumably to keep the mechanisms clean (one could possibly make up a conspiracy to collect copper for industrial resale).
But for our purposes, there may be enough copper in that machine for a sympathetic link. And if you happen to collect one of these souvenir pennies from a machine near the actual location it depicts, it makes them easy to reference. Until the machine gets serviced, those copper filings will remain.
Which begs another question: can a sympathetic link be used if you did not create it yourself? Say a Wizard found one of these tokens, and it happened to still have a viable link. Perhaps a villain is using these to get around using some teleport ritual, and the players take one of these from a defeated agent of the villain.
Would he be able to incorporate it into a tracking spell and track the target of the link?
Would you, as a GM, allow these links to be remotely researched, using an involved Divination ritual?
Or would you insist each one get tracked down on foot?
Update: have acquired a small hoard of these coins now for my game!
Update 2: the players approved!