I decided to make another hijab for my youngest using an old maxi dress. This was an old one that I no longer wore or needed! I basically followed the same procedure as I have used previously when making a hijab from old clothes! The photo below shows the bottom part of the maxi dress placed on a chair so you can see it more clearly.
Here is a link to the original tutorial that I shared a few years ago: http://www.karimascrafts.com/2012/08/diy-praying-hijab.html