Ralif Redhammer
Legend
Even the most mundane magical items could have massive economic repercussions. That Decanter of Endless Water, Wind Fan, or Eversmoking Bottle sitting at the bottom of some adventurer's backpack, in the right conditions, could be a source of power for countless people.
There are many magical ways to power things via magic that, AFAIK, violate the laws of thermodynamics. You could, for instance run a water mill with the outflow of one (or more) Everful Bottle. Of course, that water has to go somewhere, right? The main “waste product” would be water- a great externality, especially in an arid climate. But over time, it could cause flooding, and you know the mill operators won’t take to kindly to being told to shut down.