It is weird. It’s one of those things that are very uncommon now, but waaay back in the day they had no issue with giving them to kids.

That is how stink bombs looked when I was a little kid. The liquid was lighter, but exposure to elements could cause a change.

You buy them at the same stores that would sell fake cigarettes that puff or hand buzzers. You are supposed to throw it or drop it and crunch it with your shoe to release a terrible (but temporary) odor. Example

Thanks, OP! One of the funniest things I’ve read in a while.