In wiki St Nickolas is also the patron saint of New York.

The historical Saint Nicholas is remembered and revered among Catholic and Orthodox Christians. He is also honoured by various Anglican and Lutheran churches. Saint Nicholas is the patron saint of sailors, merchants, archers, and children, and students in Greece, Belgium, Romania, Bulgaria, Georgia, Russia, the Republic of Macedonia, Slovakia, Serbia and Montenegro. He is also the patron saint of Barranquilla, Bari, Amsterdam, Beit Jala, Siggiewi and Liverpool. In 1809, the New-York Historical Society convened and retroactively named Santa Claus the patron saint of Nieuw Amsterdam, the Dutch name for New York City.
I like MacLowlife's idea of the Fleur dis Lis perhaps with the three gold balls incorperated in the petals.