How about a crusher like this one? I would love to shred a few cars in it And it would work great with recently added node grabber.
Sure, if you want physics to crash whenever you use it. The game will just get extremely unhappy with something like that, and it will look terrible.
There was a mod in the works for something like this a little while ago, it was almost complete. I have not heard anything about it for the past few weeks or so though.
There was a mod like this in RoR. However, if you tried to use it the game would either crash or the result would be a spikey ball of death (or both)