I love the 2 kids playing with the jack-in-the-box and it got me wondering the history of the toy. I never knew its from the 15th & 16th century based on the "Punch" puppet from the original Punch & Judy performed during the middle ages in England. Another theory is the "Jack" represents Sir John Schorne (a high ranking member of the clergy) casting the devil into a boot to protect the village of North Marston in Buckinghamshire England. In France a jack-in-the-box is called a "diable en boite" (devil in a box).
The term was also used in 1563 to describe a swindler who cheated by selling empty boxes instead of what they thought they had purchased.
A German clockmaker is credited with the first Jack-in-the-box as we know today. In the 1500's he created a wooden box with a handle of the side that played music when cranked until a "jack" or a devil on a spring was released. Since he gave it to a prince it became a popular gift among the nobility.
In the 1700s the tune "Pop Goes the Weasel" became associated with the toy. It also made its way into political satire with the "jack" featuring a picture of a politician.
And Thomas Nast incorporates into his illustration by the 1860's a popular item in the United States and it's still around today.