The biggest benefit of a privacy screen is that it’s less permanent than a fence and can be moved around the yard as you please. They are great for adding privacy to a small area without having to fence in the entire backyard.
Lighted twig screen has multiple uses by day and by night. You will need to collect some twigs and sticks then lay them out to weave together on a frame built of sticks. Personal patterns and tastes will emerge as the twigs will seek their own balance.
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!