@freemo, informed by Michel Foucault's lectures on cynical parrhesia
[https://foucault.info/parrhesia/foucault.DT4.praticeParrhesia.en/, "Scandalous behavior"],
as a grandson of the Bezirksschornsteinfegermeister of Urach, I dressed up as chimney sweep for Halloween a few years ago, mostly to show that the Southern Californa burner crowd that their demand for assigning their interpretation of the symbol "blackface" (hate), even though for me, it's a symbol of luck and family tradition,
is a typical case of US parochialism and cultural imperialism.
It's possible that some Hollywood screen writers attended that Halloween party, so it's rather unlikely but not impossible that this ended up as inspiration for a Tonight Show skit with Jimmy Fallon and Christoph Waltz
[https://youtu.be/F0jr-HQeT74?t=200],
which, once you've suffered through reading through Foucault's lecture, is a textbook case of Cynical parrhesia.
That said, if you just want blackface without the intellectual overhead of my reduction to practice of Foucault's interpretation of antique cynical philosophy, you probably want to google the term "minstrel show",
https://www.google.com/search?q=minstrel+show&tbm=isch
put an SS logo on the hat for kicks