Te Kawaruwaru. Shark rattle. This fishing implement is made for the specific purpose of attracting sharks in the water. The kawaruwaru is submerged in the water by the fisherman and rattled to emit sounds to attract the sharks. This kawaruwaru consists of two Lambis bryouia shells, each perforated at one edge. One of the shells has extra perforations in the surface which enables water to flow also help to create sound underwater. The cassus shells have thick outer crustings. The shells are connected to loops of thickly plaited te kora (coconut sennit).