Ever think about building your own little robot army? Check out these interactive, hive mind robots. ‘Zooids’ is an open-source platform for making ‘Swarm User Interfaces’. These little wheeled bots have radio, touch and optical sensing, and they can be programmed to do all sorts of neat stuff - they can even bring you things. All the materials for making your own set are available on Github, so you can start building your own little robot army whenever you’re ready.