Turn old junk into new planters. Place flowers, succulents or other small plants in ratty old sneakers. Drill small holes for drainage in an antique clawfoot tub and grow a hedge out of it. Stack old pots in a pyramid to grow a cascade of flowers in your yard. Anything that can hold dirt and has holes for drainage can function as a planter.
Hang colored pieces of cloth for decoration. Tie several colored ribbons to a long piece of twine and tie the twine between two trees. Alternately, hang a string of maritime signal flags, flags of the world or other unusual banners. If you have kids, cut up an old white sheet and paint your own flags as a family activity.
Make your own rustic decorative lawn signs. Draw a design or a phrase such as "gone fishin'" on a board with a pen and burn it in using a wood burning tool. Nail it to a wooden pole about 4 feet high and push the pole into the lawn.
Bend thick wire into a basic animal shape such as a butterfly or rabbit and twist the ends together where they meet using long-nosed pliers. Twist thinner pieces of wire around the frame and bend them to make eyes, antennae and other shapes. Glue your animal to a stick or wrap wires around the animal and the stick to attach it. Place the stick into the ground.