Looks good, is an original idea, and certainly none of your friends don’t have it.
Step 1: Make the Outline. Outline a heart shape in heavy-gauge wire. Using a pair of pliers, tie the points together with garden wire.
Step 2: Create the Shape. Place the heart shape over a double layer of chicken wire, and cut out a slightly larger heart with wire cutters. Tie the chicken wire to the wire frame with garden wire, leaving an opening through which to fill it.
Step 3: Finishing Touches. Fill the heart with pretty pebbles. Close the opening; attach a sturdy chain and hang.