1, colorful balloon string: balloons of different colors are connected in series to form a beautiful balloon string. Hanging a string of balloons on a post or scaffold at the door gives people a cheerful feeling.

2. Balloon basket: Make the balloon into the shape of a basket. You can choose a larger balloon as the bottom of the flower basket and add a bunch of flowers or decorations at the top to increase the visual effect. Placing balloon flower baskets on both sides of the switch door or on the front steps gives people a feeling of welcome and celebration.