Horn of Chastity and Fidelity.
Morgan la Faye sent King Arthur a drinking-horn, from which no lady could drink who was not true to her husband, and no knight who was not feal to his liege lord. Sir Lamorake sent this horn as a taunt to Sir Mark, king of Cornwall.—Sir T. Malory, History of Prince Arthur, (1470).
Ariosto’s enchanted cup.
The cuckold’s drinking-horn, from which “no cuckold could drink without spilling the liquor.”
Horner (Jack), the little boy who sat in a corner to eat his Christmas pie, and thought himself wondrously clever because he contrived to pull out a plum with his thumb.
Little Jack Horner sat in a corner,
Eating a Christmas pie;
He put in his thumb and pulled out a plum,
Saying, “What a good boy am I!”
Nursery Rhyme.