Synonyms for Novelty (same or very similar meaning)
WordNet sense 1 (originality by virtue of being new and surprising):
freshnessWordNet sense 2 (a small inexpensive mass-produced article):
knickknackWordNet sense 3 (cheap showy jewelry or ornament on clothing):
bangle, bauble, gewgaw, trinket, gaud, fallalFrom the ODE community, based on WordNetadd/edit