For the sake of discussion...and nothing else...
I saw something similar to this as a meme, and am curious how this would work out in a legal sense.
Say I wanted to Form 1 a home made suppressor. I get the stamp, and manufacture a suppressor. The way I manufacture said suppressor, is by drilling two holes in my personal vehicle (stay with me, this gets weird). One hole in the passenger door, and the other in my drivers side door. On the drivers side door, I weld on a 1/2x28 thread adapter to the hole. I have now effectively created a very large single chamber suppressor that just happens to be on wheels with its own power source for easy mobility.
1: would theft of the vehicle now be considered a theft of an NFA device.
2: if the lien holder of the vehicle was notified of this, would they be able to legally repossess said vehicle now that the vehicle is considered an NFA item that is registered solely to me.
(I did not think of this myself, nor do I think it’s a sound idea in any way, I’m merely paraphrasing for the sake of logical discussion/ entertainment)