1. Preparation materials: a toothpaste box, double-sided tape, scissors, four mineral water bottle caps, plasticine and straws.

2. First, we cut the toothpaste box as shown in the figure below, and the opening angle is 3 degrees.

3, then press the upper part onto the lower part and fix it with double-sided tape as shown in the following figure.

4, and then cut the excess paper into the head and tail of the car and fix it with double-sided tape.

5, put plasticine into the bottle cap, and then insert the straw into the middle of the bottle cap, thus making a tire.

6. Stick the two wheels on the bottom of the toothpaste box with adhesive tape, and be sure to stick them firmly.

7. Turn it over and adjust it. As shown in the figure, a car made of waste materials is ready.