Snake Weapon

The Kuja all have snakes which can be used as weapons or other things. When not in use, the snakes wrap themselves around the body of the Kuja who own them. The serpents' bodies are about as long as the Kuja who use them, the exception being Hancock's whose body is exceptionally long compared to the others. Also they all wear small berets and a scarf, with the exception of Hancock's snake who wears a skull on it's head and appears to have some form of furry scarf around its neck inside of a normal cloth one.

Weapon use
Snake Bow: first snake weapon technique use by the Kuja. They would have the snake go in bow position with strings behind them. They fire normal like bows. In recent chapters it has been revealed that the arrows fired by the snakes are embodied with Haki.

Other Uses
Snake Staff: Elder Nyon's snake is seen in the formation of a staff, however it has not been seen for battle use.

Chair: Boa Hancock was seen using her oversized snake as a chair in her bed.