When Artist Son arrived for his between-semesters-visit and unpacked his art supplies, I discovered that he was carrying everything in thin plastic baggies. Nothing was damaged, but shouldn't he have something more protective and "nice" for his gear, and couldn't I make something out of felted wool?? I went directly to Pinterest where I found this idea. I adjusted the measurements a little: 7 1/2 inches by 10 1/2 inches to hold 10 pencils and 7 1/2 inches by 21 inches to hold 20 pencils, with 1/2 inch between 1/2 inch slits.
I improvised the paint brush holders. The v-neck ribbing of a finely felted sweater worked to secure the flap. Pastels and charcoals were stored in some saved Altoids tins. (Those little things are handy! I'm tempted to buy them just for the tins.)
Artist son made a few tired fruits and an an onion look pretty good in this still life exercise.