Preparation materials: balloons and wires.

1. First prepare a wire and make it into a heart.

2. Then there are balloons, a few.

3. Then tie the balloon to the wire.

4. Put one balloon every two, one tied to the top and one tied to the bottom.

5. Then tie the balloon to the heart-shaped wire.

6. After you tie it, you will see a heart-shaped balloon.