The London-based design firm Tinker made a computerized version of the children's game hopscotch for the Kinetica Art Fair:
the installation consists of a vertical light display that reflects and responds to play happening on a chalked-out hopscotch game on the ground. users play the game as usual and can watch as their actions on the ground are translated onto the colourful display.
Video at the link.
Link via Gizmodo | Kinetica Art Fair | Photo: Design Boom