example 2 i mentioned

object previousObj = alreadyCreatedObj;

for (int i=0; i < objectCount; i++)
{
    object newObj = createInstance(objectPrefab);

	newObj.linkToPrevious = previousObj;

	if(i < objectCount - 1)
	{
		previousObj = newObj;
	}
	else
	{
		endObj.linkToPrevious = newObj;
	}
}