@Rampa
That's great, would come very handy for users!

Meantime, although I do not fully understand Jessica's intentions there, I made this one from Wallet Chain accessory (I think it comes with iClone by default).
Made rigid floor
Scaled the chain
Deleted Lock_02 from it
Important! Set the SAME Mass (20) and Damping (100) for all chains (those 2 values can be played with)
Attached car to the last chain with P2P. Damping 10 for the car.
Animated Lock_01. Set Smooth in Curve Editor for all keys (can be done in Transition Curve Presets as well) except for the first two (first 2 keys are at the same position to idle and let chain to settle).

Ha! Rampa and 4u2ges don't disappoint! 

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@animagic
Funny you guessed
To the subject of physix earnings. They are very easy to make. The reason they would always fly away by default is, that they interact and bounce off of head collision shape.
Collision shape for the head has to scaled down as much as possible and collision margin set to 0.01 for both - the earrings and head collision shape.

OMG! THANK YOU!

This is EXACTLY what I needed. You even answered my question about attaching it at both ends. THANK YOU!

This, plus Rampa's will do EXZACTLY what I need, as yours also includes the pull effect.

YAYYY!

Though one thing I noticed on both is the "physics floor". How do you do that?

Thank you again!

"Set Smooth in Curve Editor for all keys "

I feel like an idjut, but... how do you do that, exactly? Heh...

Once I have the animation done, I'll post it here so y'all can see what I'm trying to achieve.

Select the keys, right click and from the menu select Tangents>Smooth:





Gerry

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System: Win 10 Pro (21H2), Asus X99-E WS, CPU i7-5930K -3,5 GHz, 32 GB DDR4 2666-16 RAM, NVidia GTX 1080 Ti GPU - 11 GB VRAM(Driver Studio-536.99), Samsung 850 Pro 512 GB SSD, 6 TB HD storage.

And if you do not have a Curve Editor (it is a plug-in), you can do very well with Transition Curve Presets to smooth animation.

Anyway, live sample to play with is better than 1000 words. Here is a sample project: https://www.dropbox.com/s/p2qyw3ss1b4rco7/Chain.zip?dl=0

Tips: to change physix properties for multiple objects (like chains) to the same value, select them with Shift.
There are also global Physix settings in Project configurations. You can play with Gravity and World scale to see how they affect physix simulation.

Thank you! I'm going to try everything now that I'm off work.