This is a really thorough demonstration of a really interesting idea. I can't think of many practical uses that require Tor here, but still very interesting.
Yeah, I would be really interested to hear some ideas for applications of this. Maybe for IOT devices between different houses to securely communicate and collaborate? Or a way to expose a public interface to your toaster without exposing your location?
command / control for botnet of infected machines?
or legitimate implementation of web crawling.
End to end encrypted and anonymous (external observer does not know who's talking with whom) IM/email/filesharing.