[Dr. Sivana]

Hollywood celebs have ALWAYS pitched products.

Here's Joan Crawford:

Ronald Reagan

Orson Welles

Cary Grant

Marilyn Monroe

Pope Leo XIII

[Buckeye McFrog]

Your post reminds me of how sad it was that Rosemary Clooney spent her latter years singing about toilet paper.

[Harmless Teddy Bear]

Orson Welles and the peas commercial is roll on the floor funny.

And the Pinky and the Brain parody is the cleaned up version so is Safe For Work.

Also a good life lesson.

[forgotten man]

Marilyn Monroe made one TV commercial. It was for Union Oil’s Royal Triton motor oil. That was quite a coup for the Los Aneles based oil company.

[dfwgator]

“Ahhhh the Frenshhhhhhhh!”
https://www.youtube.com/watch?v=Nvxwf1jxdaM

[Conan the Librarian]

Can’t say for the rest, but, Joan Crawford (or her husband anyway) owned Pepsi.

[Ruy Dias de Bivar]

Remember John Wayne selling headache pills back in the 1970s?

James Coburn shaving in electric razor commercials in the early 1960s A one minute commercial at that!

Robert Young advertising something after Marcus Welby ceased production, and way too many more.

And who can forget 1971 Ann Miller singing and dancing in a Busby Berkley advertisement for the Great-Great-Great-American Soups!

[itsahoot]

I though maybe John Wayne resisted but a quick search revealed many of them. He did abhor the small screen refusing a tv series of any kind.