I loved the process of developing this Coloring Case pattern. It is designed with slots to store your coloring books and pens and pencils. It also has a zippered pocket for the pencil sharpener, eraser or Ipad and earbuds. If you turn the case inside-out you can latch the tabs so the case stands up giving easy access to all the pencils and pens. One of my favorite coloring books; Floribunda: A Flower Coloring Book is extra large, so I added to the pattern a larger case for the book and extra colors.
The large case has a shoulder strap for comfort and convenience. Find your pattern here: Coloring Case