I whipped up an Idea Pouch from Michelle Patterns (pattern here: http://www.michellepatterns.com/product/idea-pouch-pdf-sewing-pattern).  It fits a standard composition book nicely and holds lots of pens in the inner pocket.  I can imagine making up a similar pouch for my guy out of Corudura or leather.  Pretty pleased with myself that the apples on the front pocket and flap match up.  In my case, it’s always better to be lucky then good. 🙂