The Nine Tiny Piglets are pets of Oscar Z. Diggs, the Wizard of Oz, are are used in his magic tricks.
Description[]
The Piglets are small and white, and are no bigger than mice. Diggs told Dorothy that they are from the Island of Teenty-Weent where everything is small, and he acquired them from a sailor in Los Angeles in exchange for nine tickets to the circus.
Nine Tiny Piglets.
Princess Ozma was so enamored of the Tiny Piglets that Diggs gave her one as a pet. This Piglet briefly went missing and was thought to have been eaten by Eureka the cat, which thankfully turned out not to be the case. (Dorothy and the Wizard in Oz)
Some time later, Professor Grunter Swyne and his wife, citizens of the Munchkin Country, met the Tin Woodman and told him that they had sent their nine children to live with the Wizard of Oz for their education. (The Tin Woodman of Oz)
Professor Swyne's account is inconsistent with Diggs' own account. The latter may have been a playful exaggeration, born of habit from his years of making a living by "playing humbug."