Select a terracotta pot from a garden supply store that contains a hole in the bottom that is at least 2-inches wide.
Decorate the outside of the terracotta pot using waterproof acrylic paint. Paint the pot a single color, or paint on pictures or patterns to suit your taste. Consider using stencils.
Insert a hot glue stick into a hot glue gun, and plug the gun into an outlet to heat up for five minutes.
Squeeze a line of hot glue around the perimeter of the mouth of the pot.
Press the glued mouth onto a wooden board that measures 8 inches square. Allow the glue to cool completely, and then nail the board to a fence or to the side of your house.