Kind of like a Google Home or Amazon Echo but instead of being triggered by something like “Hey Google” or “Alexa” it’s triggered by sneezes. It’s whole purpose would be to say things like “bless you” or whatever the regional response is to a sneeze
Of course it would have to be connected to the internet so that we can sell sneeze analytics to Amazon for targeted advertising.
Depending on your sneezing statistics, it should autobuy you tissues. We can sell this product to Kleenex.
And connect to pollen count services so it can send hayfever medication if appropriate!