HI Chloe, I also love this idea. I am an exhibit developer for museums, and we are always looking for ways to engage visitors and create social cohesion through play. If you haven't already you might consider looking at children's museums for inspiration. Here are a few links to some interesting museum projects. https://www.nbm.org/exhibition/play-work-build/ http://www.imaginationplayground.com http://www.exhibitfiles.org/invention_at_play
HI Taru, I love your design. I live in the Oakland, CA where we are suffering from a major housing crisis and severe homeless problem. I pass by these communities everyday—it's heartbreaking. What about partnering with US cities to market your product?