For instance, Harbor Freight sells its own branded all-purpose, 5-gallon bucket that can help you out in more ways than one. As the Harbor Freight bucket is advertised, it can hold tools ...

self-filling dog feeder from a couple of 5-gal. buckets. With a saber saw, cut the bottom off one bucket to create a serving tray, and cut a food dispensing hole in the food storage bucket (as shown).