This reminds me of the badges at Queercon that are specifically made to interact with each other via radios or physical connection. https://hackaday.com/2017/08

This reminds me of the badges at Queercon that are specifically made to interact with each other via radios or physical connection. https://hackaday.com/2017/08/07/inside-this-years-queercon-badge/ https://hackaday.com/2017/08/07/inside-this-years-queercon-b...