Although DC isn’t very progressive on its growler culture, at least you can be ready once things change. These growlers are 100% completely customizable!
From their site:
As each customer is unique, we make our growlers to be totally and completely customizable to your specifications; you provide the idea and we will hand paint or sculpt your idea into reality. At Carlburg Pottery we believe in making functional art that makes a truly one-of-a-kind statement for the micro brew aficionado.
Check out all of the different ways people have customized their beer holes (the layman’s term for the growler).
And luckily there are a FEW places to fill up your growler in the area: