After my first kitbashing Project
( take a look if you want 
King of all muck heaps )
I want to use my kit for a second Project, this time I want and Need more freedom of Position and pose, so I chose a Kraken.
I modelled the tentacle you see here:
-One big module should only move as a whole
-
under each Gland is a ball
-
every ball is connected trough a screw to a Connection ring
-
(even not shown) ball, module and ring are able to rotate
Here you see them and how they should interact with each other:
AND
is there a way of using maybe constraints to make them move together, for example when you rotate the most upper module that the other modules rotate in a realistic way
I know these are most likely extrem hard tasks and with my blender knowledge I merely need your help solving this problem. I would be extremely grateful and never forget this act of kindness and sacrifice of time.
Thanks in advance,
Marc