Festoon
A garland hung in a curve between two points, so that it dips in the middle.
A festoon is a garland fixed at both ends and allowed to sag. It is usually thicker in the middle and thinner at the ends. Festoons of leaves, fruit and flowers were hung on temples and altars in ancient Greece and Rome, and their shape was copied in stone, plaster and paint on buildings and furniture for centuries afterwards. Today they loop along marquee poles, balconies, church galleries and the edges of wedding tables.