Hi,
I have a pending post on the same topic, that I meant to make a sample for it.
Unity has a script for this in the standard asset DragRigidbody.js And I need to port this into playmaker.
Basically you attach a spring to your gameObject, and you control the other end of the srping with your mouse position.
This becomes a very popular request on this forum, so will post on the wiki a sample made in playmaker.
Say tune
( sorry some hard core deadline in the way
)
Bye,
Jean