The return-trajectory boomerang - the only authentic boomerang in the proper sense - must be manufactured in a uniform manner, including a curvature in the center of about 135,- blunt or slightly salient on the convex side. It’s used as a hobby.

Launched with dexterity, it begins to rotate swiftly on itself rising in the air in the vertical plane of launch, then tilts laterally until it gradually reaches the horizontal position. It can describe a series of circles up to the descending trajectory that deposits it near the pitcher. The range, up to about 100 m, is shorter than that of the boomerang of no return, because part of the propulsion force is used for the return trajectory.
Murray River Region, Southeast Australia

It is not uniformly present across the Australian continent, and according to the various tribal areas or groups the forms and materials vary, as do the names that define it. Boomerang has been assumed in ethnography as a standard term.
It can perform multiple functions including a ritual role in ceremonies or be used as a percussion instrument.
Murray River Region, Southeast Australia

In addition to throwing spears can have other functions: knife, container, etc. ; fitted at one end with a splinter of stone, flint or other material attached to resin wood, is used to light
the fire by rubbing.
Western Australia

It is used in hunting and fishing or to finish the animals wounded by the boomerang.
South-eastern Australia

In addition to being a defensive weapon to counter the blows of boomerang or spear, it can also perform ritual functions.
Queensland

Shield made of a medium density wood; its name comes from the term wurnda which in the Bailgu language refers to the type of wood with which it is made. Originating in the Murchison River region
in western Australia, its diffusion also in other regions indicates the importance of this artifact in the trade between aboriginal groups.

It has three sections of grooves painted in red ochre and white clay. The design, called pandal, has vertical engraved lines at the top and bottom, horizontal or oblique lines in the middle section.
Region between Gascoyne River and Murchison River, Western Australia

The protrusion of language, an expressive act present in almost all Polynesia with different meanings, for Maoris is simultaneously an act of challenge and protection from harmful forces. The back is missing.

Used as an ornament by high-ranking men who styled their long hair in a knot called putiki. It could have been made of bone or wood.

Each type of patu was modelled and proportionate to the holder’s grip and had a proper name.

The figure on the inner side represents a spirit of mythological origin linked to the spiritual power, mana, of the weapon, which increased in proportion to the successes in combat. These types of weapons were passed down from generation to generation as family heirlooms.