The Nick & Simon banknote is the first banknote in the world to be issued in honor of the ten golden albums that this duo has achieved. Not only are a large number of hidden items to be found in the banknote, but the banknote also allowed people to see 10 concerts that could be shown in the living room via augmented reality. The total revenue of this banknote went to charity (in this case Epilepsie.NL)