Les objets:
https://www.youtube.com/watch?v=SIlQid2J7aE
https://www.youtube.com/watch?v=g7kK989HiRQ
https://www.youtube.com/watch?v=ahtIGvV-WeM
https://www.youtube.com/watch?v=0B1Z3rThN9I intéressant surtout à partir de 10:25
Les instructions:
https://www.youtube.com/watch?v=UIGD9uFY-C4