Material preparation: coins, paper cups, wire, balloons, wallpaper knife, scissors, vises and colored paper.

Operating steps:

1. Put the coin in the middle of the bottom of the paper cup and draw a circle along the edge of the coin with a pen.

Draw a hole under the paper cup along the edge of the circle with a knife.

3. Make a circle with iron wire, and the mouth of the paper cup should be the same size. (assisted by a vice).

4. Place the traveler on the edge of the paper cup from the bottom of the paper cup.

5. As shown in the picture below, tie the balloon in a knot.

6. Cut the bottom of the balloon a little with scissors, not too much.

7. Open the balloon with both hands and put it on the mouth of the paper cup.

8. The place where the balloon touches the paper cup can be glued or not. Finally, put the colored paper into the cup, and a fireworks display will be done.

Fireworks are a kind of fireworks. They are nearly spherical in shape and have a special barrel. When they are launched into the air, they will burst into various products with light colors, floral patterns or other effects. Large-scale performances usually use fireworks, but there are also some ground fireworks and small fireworks, but the most important thing is to render the scene with fireworks.

After the implementation of China's first mandatory national standard "Technical Specification for Safety of Large Fireworks". According to the requirements, large-scale fireworks display will be divided into five grades, of which fireworks display is clearly the fourth category, which can only be set off after approval.