What you need -
1. Get an old wrought iron something-something - the rustier the better
2. Find some plastic disposable tablecloths which will fit on the backside of the iron
3. Twisty ties, wire, or zip ties
4. Scissors or wire cutters
What to do -
1. Stretch out the plastic tablecloths and using the ties or wire, tie the corners to the corners of the wrought iron. Cut off excess wire or tie.
2. To firm up the tablecloth look, be sure to place additional ties where needed.
3. Using the scissors, trim off any excess plastic and place the screen where desired in your garden.