Attaching entities

[DRedshot]

Ahhh, I see what you mean.
The invisible box's size would have to be adjusted each time an object is added though, otherwise either
A - Clipping would occur when the weight is added.
B - There would be an invisible mass surrounding some distance from the hook before the weight is added.

Also, the invisible box behaves strangely :/
It spins freely in all directions when it's on the end of the rope.