Caption: "A leprechaun counts his gold in this engraving from circa 1900." (Slightly edited.)

A very little human.

Leprechauns are an ad hoc hypothesis Irishmen use when they come home from the pub four sheets to the wind---"twas the leprechauns that bewitched myself."

Credit/Permission: Anonymous artist, circa 1900 (uploaded to Wikipedia by User:Francis Tyers, 2005) / Public domain.
Image link: Wikipedia: File:Leprechaun engraving 1900.jpg.
Local file: local link: leprechaun.html.
File: Art file: leprechaun.html.