How do you design a toy for a baby? And what sort of toy would appeal to a child who can't see very well? While Flyn embarks on a mission to make a new toy for a bored, bed-bound Dodly, we explore some criteria for designing toys for certain users. A visit to a wooden toy factory reveals the role of computer technology in modern toy design and making. And children let their imaginations loose on their own toy creations in scenes reminiscent of the Wacky Races. Flyn's toy shows he, too, has a lively creative mind - but is his hand-made masterpiece capable of things beyond even his imagination? This 12-part series adopts an investigative approach that helps children to recognise and understand the use of technology around them. Each 15 minute program explores one topic examining how different designs have been created to meet the demands of different users in varied situations. A narrator encourages young viewers to think about the things people have considered when designing technology to meet particular needs. Two monster puppets, Dodly and Flyn, also tackle problems relating to topics, and often come up with some highly imaginative, and sometimes impractical, solutions. These segments reinforce the need to plan a design before making a product. The programs also include children talking about their own designs and ideas and the decisions they have made during the process.