The term also applies to practical items with fanciful or nonfunctional additions, such as novelty aprons, slippers, or toilet paper.
The French mathematician and astronomer Pierre Hérigone (1580–1643) describes a novelty item that was a camera obscura in the form of a goblet.
One of the more popular novelty items in recent history was the singing Big Mouth Billy Bass, manufactured by Gemmy Industries.
According to The New York Times, Elizabeth II displayed a Big Mouth Billy Bass on the grand piano of Balmoral Castle.
[1] Novelty items based on mathematical objects, such as Klein bottles and Penrose triangles, have been manufactured.