An app or a platform where you upload a photo of your face and people guess what ethnicity they think you are.
Interesting take on challenging the ways you think of yourself and how you think people look at you.
An unusual, more personal way of learning about the ethnic aspect of geography. (For instance, a lot of Syrians are white, which I'm guessing is surprsing to a lot of people).
It's fun. On holidays people usually try to make out where someone they see or talk to is from and make their guesses in person.
Maybe adopted people with no sense of their background can find some closure in a response that is overwhelmingly in favour of a certain ethnicity.
The photo can only be posted on the platform only if you take it with the camera that very moment. To protect other people from having someone use their likeness for jokes or bullying.
Alternatively, there could be a way of verifying the identity by having the admins check whether a certain prompt has been done. This adds to the cost too much probably.
You can geo-lock your prompt to have it be asked only of the users who come from Asia, or from Africa...
For the people guessing, there should be just a blank field that autofills with options as you type in two letters. To help with spelling. No pre-prepared offered answers. You just type in "Ro" and it offers "Romanian" "Roma"...
The app collects the answers and puts them into percentages and across a world map.
For popularizing it, a miniscule percentage of the ad revenue can be given if you allow the app to post the answers your face got.
The rationale for a market for this idea is that there are many people ready to pay top money for their ancestory information via sending their saliva to some company in order to get their DNA results. Even though, these are bogus, reductive, and speculative at best. So why not a cheap platform?
There are also already people on Quora asking these questions too. There are also some apps that use face scans, but these are the dumb fake apps. Not scientifical.