01 January 2021, Berlin: A 50-euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 50-euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 50-euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 100-euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 100-euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 500 euro banknote folded as a paper ship stands on a reflective surface. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 500 (l-r), a 100 and a 50 euro banknote are folded into paper ships. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 500 (l-r), a 100 and a 50 euro banknote are folded into paper ships. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 500 (l-r), a 100 and a 50 euro banknote are folded into paper ships. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 500, a 50 and a 100 euro banknote are folded into paper ships. Photo: J?rg Carstensen/dpa

01 January 2021, Berlin: A 50, a 100 and a 500 euro banknote are folded into paper ships. Photo: J?rg Carstensen/dpa