You make Scrols with a Pen filled with Dye (as ink) on Leather (parchment) a Pen is made of 1 Bone, 1 Button and 1 Feather (because it's a pen for magic). The Button represents the upper-end plug. ...
Stamina should be an overlay for Hunger. Hunger acts as a stamina cap, and if you exhaust your hunger rate increases.