Buki Buki no Mi

The Buki Buki no Mi is a Paramecia type Devil Fruit that gives the user the ability to change their body parts into weapons, which lets the user become a Full-body Weapon Human (全身武器人間). It was eaten by Baby 5.

Strengths and Weaknesses
The Buki Buki no Mi gives the user the ability to change their body into any kind of weapon. The number of producible weapons may be limited, as Baby 5 was seen carrying additional weapons.

This fruit does not seem to have a weakness aside from the standard Devil Fruit weaknesses.

Usage
Baby 5 predictably uses this fruit for assassination and combat at both long and close range. So far, she has been able to change her arm into a cannon, an axe, and a scythe and even a bomb. She can transform both small individual parts of her body like transforming her finger into a gun, and she can also turn half of her body into a sword or even transmute her entire self into a rocket/explosive.