Shopkeepers in Mugardos want anyone with forgotten stashes of the old cash at home to come and spend it.
It is nine years since the peseta was official currency in Spain.
But Spain's economic crisis has forced some to be inventive. The hard times have seen thousands of businesses close and more than two million jobs go.
Sorta interesting. If merchants and consumers reject a central bank currency, sorta undermines the bankers
"No we won't trade our labor or produce for your paper, we'll trade it for our own"