So, after the collapse of the USA into Mad Max style anarchy, then the recreation of warring states, then the restoration of continental empire, what shall we call our currency? My favorite names are Quatloos or Newbucks, but I'm a traditionalist.
But on a more serious topic, on what shall we base our money? Gold and silver are traditional, but there is only so much, and our growing population (gotta encourage young couples to have more children, 'cause that's how the future happens) should not be restrained by something as arbitrary as the weight of metal in some vault. I propose: the egg. Specifically, the current USDA large egg, grade A (which is a measure of freshness).
No, wait, I'm totally serious. Okay, laugh, but then keep reading.
Eggs cannot be profitably hoarded. They cannot be faked. They cannot be digitized. They have intrinsic value, but only for a little while. Eggs are produced by farmers, the real backbone of any economy, but are only seriously valuable in the cities, where you can't raise your own chickens. They must be produced and distributed daily, all year long, or people get hungry, then angry.
Eggs are inflation and deflation resistant. You cannot sell half an egg. An egg next year is still an egg. An egg 50 years from now will still be an egg. If the demand for eggs goes up, the price of chicken (and corn, etc.) will also rise as farmers adjust their production. If the demand for eggs goes down, the price of chicken (and corn, etc.) will also go down as farmers adjust their production.
Imagine bankers and stock brokers waiting breathlessly to hear the quarterly farm report.
For reference, looking back a few decades, the retail price of a gross of large eggs correlates fairly well to the price of an ounce of silver. I have to admit, though, that I think a coin with an egg-shaped hole in the middle would be really cool.