Barrels in the country - a necessary thing, to collect rainwater, for example. One of these barrels can become the basis for an unusual and stylish thing - tubs or flower beds.
The photo shows how to do this with a plastic barrel, although you can also adapt a metal one. But then it will not be so easy to reliably sheathe it with wooden planks. And so you can just use the air gun to install the brackets.
The upper part of the tank before this is carefully cut to the height of the desired container, holes for drainage are drilled in the bottom. So the original container for the plants is ready. You can use it if necessary, either as an original flowerbed, or as a tub for a tree.