You can make these rosettes without the die by using simple scoring techniques in a multitude of sizes. If you want a rosette 3" or smaller, start with a strip of paper 12" long and 1/2 the width you want the rosette to end up. To make a larger rosette, combine multiple 12" strips of paper. For instance, if you wanted a 6" rosette, combine three 12" strips of 3" wide paper. Score the strips at 1/4" intervals, you can vary the scoring interval depending on the depth you want your rosette to have. Accordion fold back and forth along the entire length. You may need to trim off one section on the end so that one end has a mountain fold "^" and the other has a valley "v" fold; that way when you glue the ends together one will fit over the other.
Here is a layout I created using the rosette flower technique:
And these are some Christmas Ornaments that I had made with paper rosettes: