Best to place to store specific parts of a tool?

I want to make a tool with multiple parts, where one part can be launched and retracted. I would like to be able to drop the tool without the second part being dropped with it. Where would bevthe best place to store that part? ServerStorage?

This isn't a scripting related question btw.

However some good places would probably be,

Temporary (Removed after death)

The Player's Character

The Player's PlayerGui

The Player's Backpack

Permanent (Stays after death)

The Player's StarterPack

Workspace (Potentially)