When I was a student teacher years ago in a third grade classroom, my mentor teacher had a little fun with the kids on St. Patricks Day. They came in the morning to find tiny green footprints all over the room and their desks (a sponge shaped like a foot dipped in green paint) and green jolly ranchers tossed about the room to collect. They were sure that a visitor had been there the night before. That wasn't all though. She had a male friend with a very high tenor voice who recorded on a cassette tape after about 2 hours of blank white noise...different sayings like, "Hey, let me out of here!" "Who locked me in?" "Help, someone. I'm stuck!" etc. She placed the tape and a tape recorder in a nearby locked cupboard at high volume and went about the day. We were in reading groups when the recording of the voice kicked in and the kids all freaked out. We made a big show of now being able to find the key. It was very fun!
Which is why when I came across these ideas found below I flashbacked to my St. Patty's day experience. Check out some of these ideas! http://www.howdoesshe.com/leprechaun-traps