the 'patacon'

[Forstater, Mathew]

is anyone following the 'patacon' phenomenon in Argentina?  In the face
of budget balancing requirements, Buenos Aires has issued a different
currency, the patacon (singular; plural is patacones) so that they can
can pay workers wages and meet other commitments.  an important part of
promoting acceptability has been to make them acceptable for paying
taxes and cancelling tax debts.

see, e.g.:

http://www.taipeitimes.com/news/2001/07/30/story/0000096422