The best crafts and games made of cardboard

DIY Car track with lift and with Parking of cardboard
https://youtu.be/GUGg6JYveQc

DIY Coin Sorting Machine from Cardboard
https://youtu.be/GtoSmvN33h4

How to make a game Win a prize from cardboard How to make a game out of cardboard
https://youtu.be/Yw19IPR8DCs

How to make a track car driving Desktop Game from Cardboard
https://youtu.be/kG-vC1LiH8E

DIY Magic track with magic cars out of cardboard
https://youtu.be/C8I9jH5jKCU

How to Make a Bubble Machine with Motor at home
https://youtu.be/uznHSXDk3RU