Kind of looking for something Irish. I just found out that I'm part Irish a few years ago and I've never gotten to do anything for it. Kind of hoping to this year.
I'm in NZ, our time zone is a bit ahead of yours, I've just had st Pats day and we just had hot chips, burgers etc and mystery punch! Hahaha
Green kool-aid is usually a winner, and spike the crap outta that stuff for a good St Paddys Day party!
Here's a few more ideas (not low cost though):
All drinks and foods can be used. Just add green food colouring.
Green kool-aid and gin sounds awesome!