Option 1:
1. Pull a rope between the pillars on the back of the tent, and pull several colored ribbons from the rope to a point on the back wall to form a colorful rainbow. The rope will decorate the windmill near the tent 1~2 meters, saving ribbons.
2. Decorate the base camp with balloon belts.
Option 2:
1. Decorate the tent with balloons.
2. Draw ribbons from the four corners of the tent top to the midpoint of the tent top, make the words "xx Department" with cardboard, connect them with ropes and hang them between the two tent tops.
3. Wrap a ribbon around the side column of the tent, leaving a certain gap, and finally decorate the gap with a windmill.