May the dust of your carriage wheels blind the eyes of your foes.
May you live as long as you want, and never want as long as you live.
May your fire never go out.
May your well never run dry.
May the roof above you never fall in and those gathered beneath it never fall out.
Why can't you borrow money from a leprechaun? Because they're always a little short.
What do you call an Irishman who knows how to control his wife? A bachelor.