I've made an AR Sandbox. It's an amazing tool to simulate contour lines and keyline concepts. It's the first one in the Basque country and second one in Spain (first one was builded in Sevilla's FabLab). A few of them are spreaded in the world (officialy 32). I discovered ARS one year ago and follow the project since then because I was very decided to make one, my purpose was teach concepts about permaculture and water harvesting, keyline and so on, but it has so many applications... In my case , the frame has been fully made in wood. Also I’ve designed and 3dprinted pieces with laywood to solve some issues (eg, to hold a mirror in place).
Fortunatelly I’m joined to other 3 people and created a talented and multidisciplinar team, we made a project and asked for public funds that have been approbed. In October will start a public exhibition in 5 schools and 4 cultural centers. One of them is the biggest in San Sebastian, a town with 200K inhabitants. We are very excited with this project, we will have the opportunity to raise awareness in environmental issues and tons of people will be reached. Here a picture of my ARS. I'll send more info soon.