It hasn't been legal tender for 14 years, but in January a German supermarket chain will start accepting Deutschmarks again. Kaufland supermarkets will be accepting the former German currency at their cashiers. To support the campaign, many of the company's products will also be given a 1960s design to enhance the nostalgic theme. [...] (T)his is a limited campaign, lasting from January 4th until January 30th, and the aim is to get Germans to use the old currency they still have lying around. The estimated value of that currency is over €6 billion. ...