I foresee the widespread use of black face in the future.
Stick em up! Mammy! Mammy!
LOL I see Internet Memes being created shortly...
In Heinlein's "The Moon is a Harsh Mistress", when fleeing from the Lunar Authority, Wyoming Knott, changed herself from a bombshell blonde babe to a beautiful black woman à la John Howard Griffin, nasal inserts and all. And yes, there was a reference to the question "why not" and Mannie did.
TANSTAAFL!