Incidentally, here are the materials I've been giving/sending to officially certified purveyors of honest pints. Here's the letter:
Under the red "certified" stamp I write the date of certification.
And here's the (crude) graphic on my (crude) placards. Wealthy persons so offended by this low-budget system may contribute to the design and sticker fund.
Drink beer to support clean water this Thursday
6 hours ago