Sounds like a solid plan, and it could make the ward feel a little less… clinical. Maybe start with a puzzle that shows a simple body diagram, each piece unlocking a faint scent of lavender or mint—just enough to calm, not to overwhelm. Add a few tiny, worn‑out bandage stickers as “good‑job” tokens; I’ve seen kids line up their mementos like a treasure hunt. If you want tech, a building‑block set that spells out organ names with glow‑in‑the‑dark paint could double as a quick quiz. Just remember to keep the materials hypoallergenic and the instructions clear; we don't want a child trying to solve a puzzle with a sharp edge. And don’t worry—if the first prototype ends up smelling like a hospital closet, we can always swap the scent for something more child‑friendly.