I wonder if they could use the same model my local growler fill uses. You pay a deposit on the growler, and if you bring it back (don't worry about cleaning it

I wonder if they could use the same model my local growler fill uses. You pay a deposit on the growler, and if you bring it back (don't worry about cleaning it or anything), you don't pay the deposit on the next 64oz of beer. Maybe charge a $5 or $10 cup deposit?