The document describes the design and construction of a challenge project to insulate a can. Key details: - Materials used include styrofoam, bubble wrap, a safety blanket, and packing peanuts. - The styrofoam formed the rigid outer shell. Insulating materials like the blanket and bubble wrap were layered inside. Peanuts filled gaps. - The design process involved cutting and shaping the styrofoam shell, preparing insulating fillers, and sealing it together with tape and glue. - Testing involved placing a hot can inside the insulation and submerging it in cold water to evaluate heat retention.