With this large-scale modular construction kit, children and parents can collaborate to design and construct play structures on which children can actually climb, crawl, slide and play. Larger, more interesting and more complex designs can be created by adding more components or accessories such as slides or wheels. It’s designed for easy assembly and disassembly when building something new. The Junior kit is the second largest set in the line. "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.