The Bu or Trumpet Shell was blown like a trumpet to summons the villages together or warn of impending danger. Within each clan or tribe a single member, who was known as the Bungu Mabaig, was given this responsibility. Different size shells that made different sounds were used depending on the nature of the gathering.
The shells are found on the grassy seabeds and reefs surrounding the islands and were also were also used as a food source.
The shell was dried and a hole fashioned in its tip. It is no longer used today except to summons worshippers to certain church services.
The cast bronze sculpture can be blown like the original Bu.