> The final rule does not include items that are “…sold and/or distributed solely to school educators, researchers, professionals, and/or commercial or industrial users exclusively for educational, research, professional, commercial, and/or industrial purposes.”
"solely" implies some kind of authentication of the recipient by the sender, which sounds sufficient yet not too onerous.
> intended to be used for entertainment, jewelry (including children’s jewelry), mental stimulation
So magnetic dildos probably out. Fully automatic assault magnets - just fine.
We cannot even have fully automatic rifles in the US, so the assault magnets would have to be either semi-auto or bolt action, sorry to disappoint.