A consumable that enables you to find more stuff.
Using the Rusted Coin or Rusted Gold Coin increases your Item Discovery stat by 50 and lasts for 65 seconds. If you go through a loading screen the effect disappears. If you rest the effect remains.
You can only hold 10 of them.
There’s an ancient saying and custom that if you crush an old rusted coin you increase your fortune, being able to find more wealth for while. In all honesty, it is probably because if you crush one, you’re probably more alert and on the active search afterwards.
But… it could work couldn’t it?