I read about this idea/invention a while ago when I was looking up info on conductive materials, but unfortunately, couldn't relocate the page. It had to do with a mask someone invented that covered your nose and mouth, but was kind of stylish, (not like a surgical mask). It was made to block out toxins in the air. I think this is a very future-forward design. It made me think it would be cool to make something like this for kids that is designed to look like animal mouths.
I remember the mask may have come from a book called "new nomads."