How do i make a Hat or Bonnet Box?

so far all i have been able to find info on is how to take an existing hat box and decorate it! :(
What i NEED is to make a box from scratch - none of the modern boxes work for my bonnets(like the ones from Marshalls). They are to shallow or not wide enough.

Bonnets are too expensive, or to hard to make, to have them damaged because the stupid boxes arent the right size, so i REALLY want to make a couple but dont have a clue how to go about it.

PLEASE if you know how - i would really appreciate ANY help thanks

examples of bonnet styles that need the box

Take a look at this ible

It shows how to make small versions of what your looking for.  Just use what is in it and make it bigger to fit your needs.