BoneDynamics Pro is a blender addon that allows you to add physics to bones.

There is a free version you can try here: morelewd.gumroad.com

The free version is fully functional, but lacks features that improves the workflow

Features:
Tweak one or multiple bones physics parameters on the fly
collision on the entire bone
Bones react to movement and collision.
Super easy to setup.
Ability to stretch bones.
Ability to make a bone chain.
Easy to tweak (it uses soft body under the hood).
Upcoming updates for free. 

Blender Support: 2.9, 2.91, 2.92, 2.93, 3.0

Downloads: pls buy & support the dev!

IF THE LINKS ARENT WORKING, THEN PLEASE ACT LIKE A GROWN UP AND MESSAGE ME/ COMMENT HERE OR ON DISCORD AND I WILL UPDATE THESE LINKS QUICKLY!

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Official Discord : https://discord.gg/M2kqB4M9tG

Recommended link below => FULL SPEED.

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MIRRORS:

for mega and g drive links – contact admin.