For christmas 2013 Berlin based agency IXDS wanted to send their clients something special. With HTML5, CSS3 and Processing.js I realized an interactive christmas card. The employees recorded their version of «Oh Christmas Tree», which was sung by small manikins on a virtual stage. Clients could add a manikin themselves, it then flew with litte wings from the sky and joined the jam. The more people participated, the fuller the choir got.
The blog Design made in Germany said, that this was a «sweet idea».