Ricoh is a company that has designed its copiers so that at the end of the copier’s life, Ricoh will collect and dismantle the product for usable parts, shred the metal casing, and use the parts and shredded material to build new copiers. This product design can be called “cradle-to-cradle” design. Are there any other products you are aware of that have such a design? Perform an online search for “cradle-to-cradle design” or a related term if you need ideas.