I purchased a $7.00 shoe bag at Odd Lots. Allura and I measured her locker door to see what had to be done to make this fit. It worked perfectly. I just cut the shoe bag in half and sewed up the edges. Along the top and bottom edges on the back side of the shoe bag, I attached some heavy magnets. My sewing machine did sew through these. I had to kind of slip the front of the shoe bag on my sewing machine into one of the pockets to attach the sides of the magnet, but it was not hard.
We can now attach this to her locker door to hold her crayons, markers, she has to have 10 black pens, 10 red pens, 10 pencils, erasers, crayons, markers, highlighters, colored pencils, bottled glue, glue sticks and the list goes on and on. You can see why we needed some way to organize this or everything would just be throwed into the locker. She can only carry a small pencil bag with her. Here is our finished project! Maybe this will work for someone in your family as well!