novelty vs trinket

novelty and trinket both are nouns.

Word	Noun	Adjective	Verb	Adverb
novelty	Yes	No	No	No
trinket	Yes	No	No	No

As nouns, novelty and trinket are synonyms defined as:

Other synonyms of novelty include bangle, bauble, fallal, gaud, gewgaw.

novelty (noun)	trinket (noun)
cheap showy jewelry or ornament on clothing	cheap showy jewelry or ornament on clothing
a small inexpensive mass-produced article
originality by virtue of being refreshingly novel
originality by virtue of being new and surprising