My grandmother was an actress in the 1940s and we still have hers from then. They're genuinely hideous and terrifying-looking.
The long-term effect on her was that her tear-ducts stopped working. Many things back then, as now, that public figures had to do to remain employable had these horrible health effects.
Still, we get a cool souvenir and I'm genuinely pleased to see this clip of the things being made.