The most expensive export of the Rin archipelago, the bottled winds are sold anywhere a buyer can be found.
Those magnificent men, in their flying machines...some of them air cadets, others who are long-toothed veterans of war in the air.
What if the sources of precious metal in the realm all failed, so that the only sources for gold and other precious metal were hostile foreign lands? Gold coinage might become increasingly rare, resulting in hoarding. Player characters that appear with masses of treasure might be suspected of being in the pay of foreign powers.