Rigamajig, conceived by Cas Holman as a large-scale building kit for children, encourages imagination, innovation, and collaboration through its collection of wooden planks, wheels, pulleys, and more, designed for free play without the need for tools or instructions. Originating as a pop-up playground for New York City's High Line Park, this award-winning design fosters cooperation and creativity among children, allowing them to bring their ideas to life. 

https://casholman.com/design/rigamajig