Greetings from... Australia.
If it's an idea first mooted here on APUG, then it would be an APUG exchange for APUG members/subscribers, and therefore have a truly international flavour, like APUG itself.
There is a thriving community of pinholers in Australia, a few nearby me here, including those who make their own cameras, anything from 6x9 to 6x12 to, I think, 8x10. All regular entrants in Worldwide Pinhole Photography Day.