You start by cutting your Paper or cardboard into strips. The length and width of the strips will later determine the size of your paper rosettes.
If you are using large sheets, one long strip is enough, for example. For A4-sized material, you will need 2 strips. If you have even shorter strips, you will need to work with 3 or more. The width of your strips determines the later diameter of the rosette. If you have strips that are 4 cm wide, your rosette will have a diameter of at least 8 cm.