Not sure if this will get any traction, or even worth the time, but I am like many out there that seem to accumulate growlers. I know some collect intentionally; for me, just seem to pick them up when I find myself at a new brewery without one to fill. Here is my latest, a stainless steel double wall vacuum sealed double-bail closure thing with the words "Kicking Mash and Taking Grains" - from Brewery Ricoli here in the Denver metro area. Post yours!