Well basically interstate commerce comes under the Commerce Clause and there’s tons of laws written since the 1920s that cover a broad area of regulation some of which even the GOP here likes. So unless SCOTUS decides to troll the ever loving hell out of Congress by invalidating any/all uses of the Commerce Clause beyond its scope there’s not likely going to be such kooky laws against DIY stuff. Mind you that’s so long as it’s not a direct threat to anyone’s life or that anyone can’t drum up support for such a ban.
