Yes, hypothetically, according to this show i just watched, the best way to launder would be a cash only (or primary) business such as strip clubs, casinos, etc. Or you can simply create any business and make it cash only like a bakery.

That way its much harder to link because there won’t be any bank records to say otherwise

Personally I think it’s a bad idea

There’s lots of things that can go wrong and most of the time those drives are made in super controlled environments because they can be extremely sensitive. It’s just not worth the headache