novelty

US /ˈnɑː.vəl.t̬i/
UK /ˈnɑː.vəl.t̬i/
1.

mới lạ, tính mới, vật mới lạ

the quality of being new, original, or unusual.

:
the novelty of being a married woman wore off
2.

mới lạ, tính mới, vật mới lạ

a small and inexpensive toy or ornament.

:
he bought chocolate novelties to decorate the Christmas tree