Leprechauns are little Irish fairies, and they are thought to work as shoe-makers for other fairies. The Irish say that if a leprechaun is caught by a human, he will reveal where he hides his pot of gold.
Paper and pens.
Using pen and paper (or construction materials for older children), design a trap to catch a Leprechaun so that they have to give you their gold. It can’t hurt or kill the Leprechaun, only capture.