Watching Stephen Fry visiting Fairfield, Iowa, as part of the television series "Stephen Fry in America", I learned that the city uses the currency Raam Mudra along with dollars. Here, from an article in the Los Angelse Times in 2002:
The currency originally was intended to be used in Vedic City only, but thousands of meditators also live in Fairfield, a town of 8,700 two miles away. They also began to circulate the raam. Vedic City Mayor Bob Wynne asked businesses throughout Jefferson County to consider using the new currency.
[…]
The currency is named for Raam Mudra, the ancient Indian prince whose image appears on the notes. The colorful bills also feature Sanskrit messages of peace and prosperity, a cow and a wish-fulfilling tree.
One raam is worth $10. The one-raam note is green, the five-raam note blue and the 10-raam bill, worth $100, orange-yellow. The notes are printed in the Netherlands by the company that makes the euro.
TM adherent Mark Welch, who runs the Radio Shack in Fairfield, accepts raam. So does meditator Mel Sauerbeck, owner of a Fairfield photo studio. TM-connected stores exchange the bills among themselves in the course of business.
And the Vedic City Hall serves as an exchange service for those who want to change dollars to raam. Rogers Badgett, Vedic City mayor pro tem, said the colorful bills could become collector's items.
Watch the segment from "Stephen Fry in America":
Photo credit: Via Fotki.