Many years ago, my in-law's would host a huge St. Paddy's day party on the closest Saturday to the holiday. They would invite everyone they knew and it was quite a sight seeing 50+ people cram into their small house for a few hours. Unfortunately I only participated in three of them before my MIL suddenly passed and the tradition went with it.
My wife has talked for over 10 years about re-starting it at our house. However, March is my busiest time of the year at work plus most of our friends have young kids (including us) so the thought of having two dozen of them running around our house sounds kind of hectic. Her parents waited until their kids were teens before starting so I think we will too.