Grab/Throw Parenting

I am trying to figure out how I could have one Player throw an Enemy by the Enemy's foot. My idea is to have an empty gameobject on the Player's hand, and when grabbed, the Enemy would follow the Position/Rotation of the empty gameobject until he is let go. This way, I could move the empty game object accordingly until it lines up the foot with the hand.

I think that way will work, but are there any others? I ultimately would need some form of dual parenting, where the Enemy would follow it's Foot's position, but without distorting the bone connections. The problem with my first solution is that the object might not line up with different enemies due to their pivot points not always being the same.

If somebody could tell me if I'm on the right track, or tell me of another way to handle this grab/throw mechanic, it would be highly appreciated.

I understand that this isn't a typical question, but if anyone's willing to lend me a quick answer it would be greatly appreciated.