Decal (noun)

A design or picture that can be transferred (as by a transfer process) to a surface (as on pottery or metal or wood) and that is used for decoration or identification.

Origin:

From the french word "décalcomanie" meaning "transfer picture".

Examples:

1. She applied a decal to her laptop.
2. The decal was of a cartoon character.
3. The decals were used to decorate the walls.
4. The decal was made of vinyl.
5. The decals were used to identify the different rooms.