1)make a hole in the center of the cover and at the bottom of the plastic
2) insert the rubber band into the hole of  the bottom of the plastic. insert in between the rubber band the barbecue stick (3cm)
3) insert the other end of the rubber band into the hole of the cover. insert a band or a washer to the rubber band before inserting the barbecue stick
4) twist the rubber band by rotating the long barbecue stick
5) lay the toy in the floor