Actually, ThinkGeek made a production run a couple years back (though I guess I don't know that they were US-made). Doesn't seem to still be on their website, but I have one so it definitely existed. https://www.amazon.com/ThinkGeek-Slide-Rule/dp/B003M5B84C still shows a listing.
I'd be interested if someone made a new good slide rule. And not just slide rules--there are at least a couple of other older computing devices I'd like a good quality working replica or reproduction of.
1. A Curta calculator. https://en.wikipedia.org/wiki/Curta
2. The Antikythera mechanism. https://en.wikipedia.org/wiki/Antikythera_mechanism
https://www.youtube.com/watch?v=j9uRckJLqLk
A 3:1 scale replica of the Curta, 3D printed.
The article notes that Marcus Wu has published a printable 3D model of a curta (at 3:1 size due to printer precision issues, though there are comments about people attempting 2:1 builds). You can also find actual curtas on ebay, though they're not cheap ($500~$1500 depending on condition and the like).
We did still use log tables at college in the late 70's early 80's though the course I was on still had belt drive's in the syllabus - yes the dawn of the industrial revolution type belt drives that ran factories in the 18th century