I personally know someone who uses something he calls "Dutch reach-around" and while I'm hazy on the details, I know it starts with some complex setup of a charitable foundation in your home country, with real people and real money and a network of firms and other foundations in the Netherlands that are somehow interwoven. He told me "setup is cheap, only 5 million dollars up front, you can ask my tax attorney for the deets"....
That was a nice move, but no thank you, this is not the kind of money I have lying around.
Bonus how us firms do it, I imagine this costs also a lot of money up front...
Says here SGI demoed the coprocessor to both Nintendo and Sega. Sega bowed out after their engineers found / perceived problems with the SGI design. I do not remember any behind the scenes article about the realtionship between Nintendo and SGI but having heard a lot of stories, I suspect the read would be entertaining ...