Character customization with different bones

Hey guys. I am looking to make a character customization for my game. But i would like to have like hair a and b have different bones. Example a poney tail vs let down hair or besrd bones.

Or even a cat tail vs a ninetail type of set up

However i havent really found any good tutorial.
Everything i see are for statics obj with no movement.

Should i creat my player mesh with all the various bone and use wich one i need as i go or is there a way to only inclue certain bone (apart from deactivating from hirachie)

 

You can parent a skeletal mesh with bones to a bone used by another skeletal mesh.

So make a skeletal mesh for a tail, and attach it to character's hip. And there you go, a tail. The attached object can have its own animation, can be physically driven, or procedurally animated.

Actually this cis sorta demonstrated in this sims glitch here:

When the dog transform, it continues wagging its tail, even though the target animation is made for a human and has no t ail bones. Why?
It could be happenning that the tail has its own controller, and is not a part of the dog, but is simply attached to it.