Nowadays Saint Patrick's day is celebrated everywhere at least in pubs or the illumination of monuments. Even in China where I bet they have several pubs in their metropolis.
Donkey sausage for sale at a French market. The donkey sausages have been hand made and air dried and are a traditional delicacy (Google)
Saucisson sausages for sale at Winchester Christmas Market located next to Winchester Cathedral in Hampshire, England, UK (Google)
As for the difference between "saucisson" and "saucisse" both translated as "sausage" in English (or "salchicha"in Spanish.) you may check (click below) : Difference between "saucisson" and "saucisse"
...As usual some people criticize and/or say it is too expensive. As for me, once every 20 years I dont mind at all ! + It's an historic place : maybe the oldest restaurant in NYC !