DoesntMatter01:
I might be misremembering but I think mythbusters had an episode on it and disproved it 😂

I beg people to improve their scientific literacy. Diet Coke and Mentos have long been famous for their violently fizzy reactions. I've seen people use them to generate thrust for all sorts of things.

And on top of all that, the two have been a staple in kink space for ages now.