The "Little Wonder" from Oklahoma! (1955)

Aunt Eller is scandalized by the Little Wonder's pictures. Jud queries the peddler man: You ever hear of a thing called a Little Wonder? You hold it up to your eye and look through it to see pictures. You say to a fellow, "C'mere, I wanna show you something. Look through this." While he's looking, you press a little jig on the end, out snaps a blade, and bang, down you come.

The peddler man is unable (and uneager) to help Jud fulfill his ambition, but, through an arrangement involving a girl of loose morals and a cowboy of low mentality, Jud is able to acquire a Little Wonder. Hilarity ensues.

Jud checks out the Little Wonder.

Jud attempts to give Curly a practical demonstration.