Hello all. 
I know this should be pretty simple. I created some earrings as props in Blender and imported them into iClone. Attached them to ears in iClone ( technically they are positioned on the ear but "attached' to the head. 

Either way, they move with the head fine during animation. But I need them to sway.  I went to the modify panel and to Physics > Activate Physics ... but I'm not sure what the right combination of features are to get it working. I need to obviously constrain the topmost point of each earring to the corresponding "ear lobes" of the actor. .  Mind you, these are earrings that I created . I did not purchase them. 

Any advice would be appreciated ! Thanks. 

Download those free earrings and see how they were made: https://marketplace.reallusion.com/physix-enabled-earrings_180296
Basically nothing special. 2 parts connected with the constraint.
The most challenging would probably be tweaking head collision shape as it's colliding with earrings and make them fly away.

Thanks, 4u2ges. I will try that. 

I tried them, they do bind to the earlobe but they fly around fanatically ( in a frenzy ) and I can't seem to figure out how to get them to actually behave correctly. I wonder if they were made for an older version of iClone perhaps ?  It's good that they're free because they're not a 'ready to go' asset, it still requires some knowledge of how to tweak them to get them working. 

That is what I said. They collide with head collision shape and fly away. You have scale head collision shape down and set it's collision to minimum.

oh ok, thanks for the clarification.  Appreciate the help !

@4u2ges
That worked !  Thank you so much. 

Hey i am a little late to the party, but i was wanting to know how would i go about added my own earrings and making them sway like yours do?

What you know today will be obsolete tomorrow

Hey i am a little late to the party, but i was wanting to know how would i go about added my own earrings and making them sway like yours do?

You would need two parts earrings (earring itself and a hook) and connect those 2 parts with point-to-point constraint.
Download those earrings from above and see how those parts are attached to each other, connected with constraint and settings for the constraint unit.
You can also check a free Lantern with Pole prop (which supplied with iClone in Prop > Light Tools section of Content) to see how it should be done.

Thanx for the reply. I will be checking this out. This is very helpful i greatly appreciated

What you know today will be obsolete tomorrow