Leprechauns are small, magical beings that grant luck to the world. Leprechauns live in their own realm which and can teleport through Rainbows. These Rainbows are in the sky all the time but can only be seen by humans when it rains. Leprechauns light them up with their shillelaghs
Seamus the Leprechaun 11 by Boggleboy on deviantART
Leprechaun - a well-loved Irish fairy who makes shoes for other fairies and who notoriously hoards gold. If you can catch him, he has to share his treasure. It is a game for him because he always seems to win.