Anyone else remember this?
When I was growing up in the early '80s, there was some TV show that had a parody commercial for something called Okra Cola. It was a soft drink that turned everybody's teeth green. I burst out laughing when I saw this!
I was thinking it might have been in an episode of 'Saturday Night Live' my parents watched, but now that I think about it, it may have been a Steve Martin or Johnny Carson special.
I also remember a show that had a parody commersh for toilet paper that was pre-wadded so you could use it if you cut yourself shaving. This might have actually been the same show as the Okra Cola ad.
https://www.youtube.com/watch?v=F9FDvwU6Hmk
When I was a little kid, I heard that the Comet brand of cleaner had that side effect. It also tasted like gasoline, and would make you lose your lunch (https://en.wikipedia.org/wiki/Comet_(song)).