The document discusses a best practices case study called Betacup that aimed to address the issue of paper cup waste. It involved an open call that attracted over 430 ideas from more than 5000 participants to scale solutions. The most promising ideas were selected through an expert jury and agile design process involving over 1600 versions and 5000 feedback comments. The collaborative process nurtured a community and produced results through real commitment and design ownership on a relevant topic. In the end, the project earned significant media attention due to its contagious collaborative atmosphere.