Plants are great to enhance an area that needs beautification. Plants can be put into unique planters to make them even more enhancing. As long as the container has drainage it can be used for plants to grow in.
Old kettles, pots and pans that are from an earlier time can be used to put plants into. There needs to be a hole on the bottom of the vessel for water to drain out of. If not you may be able to drill a hole into the container with a metal drilling bit.
A wicker basket that is lined with a plastic liner can work for a plant container. You can use a plastic bag or two with a hole in the bottom for a liner. Or you can line the basket with a plant pot that is similar in size to the basket.
Find a cup or bowl with a crack in it that can drain water. Or carefully make a crack in one yourself to drain water. The prettier the bowl or cup the better. A cup is a great place to plant a small plant like a violet or cactus.
Make a wood square or triangle to use as a planter and paint it any color or design you want. This can be very personalized with a name or house number painted on it.
Find a big vase and use that as a planter the vase can be large enough to place the plant on the floor or small enough for a table.
An old bathtub is a nice outdoor planter that you can have in your front yard. Place it in a tilted fashion so the plants are easier to see. The drain is a natural place for water to seep out of the planter.
Old tires make nice places to put plants. Stack them up and you can make the planter as tall as you would like it to be and fill the inside with dirt and plants. Or place the tire on its side and slightly put it underground so it does not tip over and you can plant inside the rim of the tire. You will need to put a hole in the bottom of the tread so water can drain.
Find an old bird cage and you can put a pot with a climbing vine in it. Then as the vine grows it will attach to the wires and make a pretty plant in a birdcage.