How to pick up a chain of objects

Hello,

I'm trying to get my player to pick up objects which then line up behind him in a flexible chain, which will swing around as he moves. I can pick up and get the objects to be attached to each other, but I can't line them up behind him. I'm a bit new to Unity & C# (coming from obj-c) so any help much appreciated! Code (on the player gameObject) -

 private IList<GameObject> bubbles = new List<GameObject>();
 private int bubbleCount = 0;

 void OnCollisionEnter(Collision theObject) {
     
     GameObject theGameObject = theObject.gameObject;
     
     if (theGameObject.tag == "Bubble") {
             
         if (theGameObject.hingeJoint.connectedBody == null) {
             
             if (bubbleCount == 0) {
                     
                 theGameObject.hingeJoint.connectedBody = gameObject.rigidbody;
                 // how to set the bubble's position here?
                 
             } else {
                     
                 GameObject lastBubbleObject = bubbles[bubbleCount - 1];
                 
                 theGameObject.hingeJoint.connectedBody = lastBubbleObject.rigidbody;
                 theGameObject.hingeJoint.anchor = lastBubbleObject.transform.position;
                 // need to attach it to the last object in the line
                     
                 }
                 
             bubbles.Add(theGameObject);
             bubbleCount ++;
                 
         }
         
     }
     
 }