We sometimes buy the cat food that comes in the plastic jugs with really wide openings.
They get reused as water containers for junk water and dog water.
Many, many, many years ago, Buster, my beagle was uselly tied out during the day, and we'd use those jugs to take water out to his bowl. Often I would take water to him, on my way to the bus stop and leave the jug to pick up when I came home.
Several times, I came home to a beagle with a jug head...
I swear he did it on purpose because he knew it would get a laugh.