Novelty (noun)

1. Something new and original, that has not been seen before.
2. The state or quality of being new and different.
3. Something that is unusual or interesting because it is new.

Origin:

From latin word "novella" which means newness, new thing.

Examples:

1. The product was a novelty when it was first introduced, but it quickly became popular.
2. The novelty of living in a new city soon wore off.
3. The store sells a variety of novelty items such as fake mustaches and inflatable guitars.
4. He was constantly searching for novelty and excitement in his life.
5. Despite its novelty, the device failed to catch on with consumers.