This is a large-scale modular construction kit on which children can climb, crawl, slide and play. Parents and children can work together to design and build play structures. Larger, more interesting and more complex designs can be created by adding more components or accessories such as slides or wheels. It’s designed to be easy to take apart so users can build something new and different as often as desired. "Our kits are the only product on the market where you can design your own play equipment on a computer and then actually build rugged play structures to actively play on," George Maday, owner of Phunzone, told TDmonthly. Launch date: 1979.