My family constructs a leprechaun trap each year. We have never “caught” a leprechaun (yet!), but the time we share creating the trap is a family favorite. And yes, “leprechauns” do drop in from time to time, on or near St. Patrick’s Day. They leave items such as books and gold tokens. (Amazingly, the tokens work at our local arcade.) Sometimes they leave other goodies, but most of the time, they create a bit of a mess.
We have been awakened to chairs tipped over and things out of place as the leprechauns scurry about the house. It’s a St. Patrick’s tradition in our family. Try it!