Interesting. Another project with similar goals I came across recently is https://www.stampstampede.org/faq/ https://www.stampstampede.org/faq/ which was starte

Interesting. Another project with similar goals I came across recently is https://www.stampstampede.org/faq/ https://www.stampstampede.org/faq/ which was started by Ben Cohen of Ben & Jerry's fame. They use a stamp (like the Where's George project) and keep legal notes in circulation.