Prepare materials and tools: three flatter and one taller rectangular paper boxes, Ten equal-sized bottle caps, two paper clips, and two bendablestraws , glue, scissors.
1. Glue the white bottle cap and the yellow bottle cap to a flatter rectangular carton respectively both sides.
2. Glue the four blue bottle caps to the two sides of another flatter carton. side.
3. Put the two paper clips together and hook the two paper boxes with both ends.
4. Cut the two straws, leave a part, and glue it to the higher side of the carton.
5. Glue the paper box with straws on it to the paper box with four wheels.
6. Glue the remaining cartons to the six reels On top of the carton.
