Novice sewer pattern suggestions for a craft organizer? Sewing Machines Parts and Sales in Los Angeles

I’ve done a few little projects here and there, mainly pillows and jackets for my rabbit. I’m now looking for a way to organize my planner decorating supplies and haven’t found any patterns I like. I’m hoping someone may have a suggestion! I have a lot of washi tape rolls and markers I’d like to keep in it, and since I’m going to toss this in my backpack it would be nice to have zippered pockets instead of a button. I’m not confident enough in my abilities to make a pattern from scratch, but I think I’d be able to make little adjustments if I find one close to what I want. Thanks for the help!