Cut a roll of concrete reinforcing wire into a 4-foot section using bolt cutters. Make the cuts in between two vertical wires, so a section of horizontal wire remains.
Push a metal pipe over the bottom horizontal wire that juts out past the last vertical wire in the cut section. Pull the pipe back to bend the horizontal wire into a hook. Repeat with the top horizontal wire.
Roll the two ends of the reinforcing wire together, creating a cylinder. Push the two hooks you created over the first vertical wire you come to when you make the cylinder.
Stand the cage upright. Press it into the soil over the vegetable you want to support.