1, making balloon arches. Then inflate the balloon, cut a piece of line about 15cm and fold it in half, and then tie the air holes of the two balloons relatively. Take two pairs of tied balloons, put them in a cross, and tie them together with a 20cm thread. Finally, the whole arch can be tied with balloons.

2. First, use a wooden board to make a base at the above two right angles, and then use an arc angle to fix it on the finished wooden board with a nail gun. The internal and external operations are the same to form an arch, and the wooden square dragon bones are fixed at equal intervals between the two arched semicircles and the hollow part of the wall.

The easiest way to make a balloon arch is as follows: buy an arch. You will use it as the basis for tying balloons. Finished arches of different sizes can be found in garden furniture and rental shops.