Gniibe Distributed Hanoi Protocol is another way to solve the famous puzzle.
While ToH is originarry a pullze for a single person, we can "play" among three persons.
The point is: no central knowledge, no centralized control, but collaboration.
While I play/promote this protocol in some conferences (Asia OSS Symposium, LinuxTag, LibrePlanet), I haven't promoted this in Debian.
I think that this kind of BoF is good for Debian, so that we can even invite children to some sessions.
Key Signing Party is important but it would be too exotic for non-hackers. This party could be an alternative.
This can be a kind of social event.
URLs: http://lists.alioth.debian.org/pipermail/pkg-gnupg-maint/attachments/20150511/9c24355e/attachment-0001.gif http://www.gniibe.org/pages/gdhp.html