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.

There is a free version if you want to try it before you buy it, the free version has limited features, but it is completely usable and free

CHANGELOG:

0.1.0:
-Initial release.

0.1.1:
-Added the ability to pick the size of the object controlling the bone.

0.1.5:
– Better errors handling.

– Naming collision bug fixed.

– Reactive UI values based on selection.

– Playback performance improvements.

0.1.6:
– Fix bad spawn position

0.1.7:
– Fixed Foreign language Error.

– Instant updates when you tweak parameters.

– New Presets manager feature.

– Performance improvements.

– Better UI

1.0.4:
– Fixed Foreign language Error.

– New chain mode and cloth Mode (tutorial soon)

1.0.6:
– Fixed bone layers consistency bug.

– No need to select the active bone anymore

1.0.8:
– Minor bug fixes.

– Chain mode tweak

1.2.1:
– Major bug fixes.

– Ability to use it with linked armatures (library overrides).

1.2.5:
– Dynamic Bone list with shortcuts, ON / OFF , selection.

– Tweakable frame step when you bake the animation.

1.3.5:
– FIxed the crash when you undo

– New displacement mode 

Downloads: show love to dev by purchasing if you can afford it

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! MAKE SURE YOU DOWNLOADING PROPER FILE WITH PROPER EXTENSION LIKE .ZIP OR .RAR

dmca removed.

MIRRORS:

for mega and g drive links – contact admin.