memento (n)

I kept a seashell as a memento of our holiday.
The traveler collected small mementos from each destination visited around the world.
A photograph can serve as a cherished memento capturing a special moment.
The engraved plaque was presented as a memento to commemorate years of dedicated service.
The museum gift shop offers a variety of mementos for visitors to take home.
The wedding couple exchanged personalized mementos as tokens of their love and commitment.