Whether they served a decorative or functional purpose is uncertain (probably both).

Many other cultures kept fish for both functional and decorative purposes.

The accessories are simply shells, and do not provide any other functional purpose.

The building's design elements serve both aesthetic and functional purposes.

Some of these animals were purely decorative, while others also had a functional purpose.

There is no copyright protection in a work that serves a functional purpose.

These pieces were generally made for functional purposes or burial goods.

This is most likely due to specifically evolved functional purposes.

Some studies, however, offer up a functional purpose for these ornaments.

This scheme determined the functional purpose of the project land.