Determine the desired finished size and shape (e.g. oval, circle, etc.) of the frame. Hint: Do this by using a tape measure to lay around my chosen "pendant charm."
Cut one piece of pattern wire the length of the finished size. Cut a second piece ⅛" shorter than the first.
Cut four pieces of 21-gauge half hard square wire, 2½" longer than the patterned wire. Twist two of these wires. Measure and mark the centers of all four square wires and mark the center on the fronts of the pattern wire.
Place the pattern wire pieces back-to-back and place one twisted wire and one plain square wire at each edge, the twisted wire going on the outside edge. Line up all of the center marks and tape 1" in from each end of the "pattern wire bundle." The shorter pattern wire side is now the back of the frame.