Clapstick
Clapsticks or clappers are a type of drumstick, percussion mallet or claves that serve to maintain rhythm in Aboriginal voice chants. Unlike drumsticks, which are generally used to strike a drum, clapsticks are intended for striking one stick on another.
As an ancestral instrument that may traditionally accompany the didgeridoo, it is sometimes referred to as musicstick or just Stick. In the language of the Yolngu Aborigines of Northeast Arnhem Land, near Darwin, Australia these clapsticks are called bimli.
Boomerang clapsticks
Boomerang clapsticks are similar to regular clapsticks but they can be shaken for a rattling sound and be clapped together.
Technique
The usual technique employed when using clapsticks is to clap the sticks together to create a rhythm that goes along with the song.