I fell in love with the cartonnage from the first moment I got to know it. After saw so many beautiful cartonnages, I made my first easy verion one.
My easy cartonnage was made from my daughter's teddy box. It is not perfect shaped. Next time I would try to make a real cartonnage with 3mm cardboard.
Leaving some margin for the fabric is a good idea. Also, don't forget to wash and iron them.
The tools I used were very simple. For the best result, the bookbinding glue is recommended. It is not too runny and too tacky, just perfect for the job. Of course, the multiple function glue can do the job too.