I think Ford's solution is the most creative and rather brilliant compromise.
I don't know how many of you guys know this, but the Ford Raptors have optional SVT Beadlock rims from the factory. What they do to get around the very murky legal grey waters is the innovative part.
The standard SVT Beadlock rims from the factory come with a fake 12 bolt "Beauty Ring" that is just a decorative piece like the TRD Rims. But that's where the similarities end, the real innovation is that these rims in fact are pre-drilled & threaded for a 24-bolt Beadlock ring available from the factory. The rims are cast/machined with a relief on the outer edges so they double as both standard rims and true Beadlocks with the optional 24-Bolt Beadlock Ring.
The only bad part is that Ford uses a 6x135mm Bolt Pattern on their rims, while Toyota uses 6x139.7mm... which means you can't just buy the rims and slap them on our vehicles.
I kind of wish some aftermarket companies would use Ford's concept for "flexible" wheels that can be either standard "DOT Approved" rims or True Beadlock rims as well.
A short video explaining what I mean:
https://www.youtube.com/watch?v=8ewMNOVynq4