Rusted metal corten steel post posts for driveway entry exterior Under day light, the rusty color is a eye catcher in the green garden, when it is dark, light up those laterns,those flowers and birds carving create beautiful shadow like haiku.
Recycled door would make a great trellis. This has barbed wire spirals connected together to form a panel. Thinking barbed wire would not be so good as a trellis, as the yearly clean out of dead vines would be a bear!
Fake Boulders - how to make = boxes covered with garbage bags, then cover the boxes with chicken wire, then cover "rock" shape with about 3 inches of pigmented hypertufa (portland cement, sand, peat moss mix).
Garden Edging: 5 Ways to Edge Your Landscape with Recycled Materials