WordNet
n. a decoration used as part of the set of a theatrical or movie production
Usage examples of "set decoration".
When at work, the housekeepers kept the vacuum cleaner away from these gossamer architectures, which had been made not by spiders but by a specialist in set decoration from Ghost Dad’.
But these characters are less people than elaborate set decoration to allow the growing relationship between the Doctor and his alien patient to shine.
As the chair of set decoration and property management, he'd already been to several in-school practices and a dress rehearsal given for the student body.
Second, he looked back over the lengthy and detailed imaginary future he had just thrown together as a set decoration, and saw the ideas stacked all round its empty stage .