Why should St. Valentine corner the market on passing note cards? St. Patrick delivered plenty of messages himself ... and even wrote an autobiography and a beautiful prayer. (Hear the beloved "Breastplate of St. Patrick" sung.) Here's a page of St. Patrick note cards for you to use in celebrating his feast day. And, really, who needs a pot of gold when you've a gold pot of love and this guy sending you a blessing?
You can put it in a lunchbox, tuck it next to plate of yummy Irish food, have it accompany a gift of Irish cookies or soda bread, etc.
And if you've a little extra time, print out last year's Paper Dali St. Patrick to color, too.
p.s. Yes, the prayer says, "Bind to myself" ... You just want to say "Bind myself to," don't you? ;)