It had about six or seven annual awards (which meant that it wasn't a new plaque). And it was titled:
Green Piece Environmental Patrons.
I did a double take, and then a triple. I racked my brain to see if I perhaps I was missing something. But to the best of my knowledge (and Google's as well), I am not. The organization in mind is surely Green Peace.
But how can you expect educators to recognize homonyms??