Add-on 2 — Print It Without Wasting

Papers, six printer settings, five rules and the full supply list with real costs. Which weight of cardstock holds a lever, which setting keeps the 1:1 scale, and the complete restock list — oral dosing syringes without needles, 3-4 mm aquarium tubing, clips, skewers, straws, batteries — at about $4 per student for the whole year.