The document describes a co-creation toolkit designed to improve communication between designers and 8-10 year old children. The toolkit includes activities like drawing, collage creation, and building with instructions to analyze children's reactions. The initial toolkit focused too much on a specific toy topic. It was modified to have more general activities observing emotions and language to better address exploring effective communication techniques. Testing showed children may act differently with unfamiliar people, so establishing trust is important for getting truthful feedback. The goal is for designers to understand children's perspectives to aid co-design projects.