I was amazed to find out that those masks are made of wood, and that they are using real horns on them. The faces looked believable and fairly mobile in the video.
I'm curious to see how they keep them on their heads. I'd love to go and take their course in doing the carving, but my wallet isn't fat enough, nor is my German good enough. I wish they told more about what is on the DVDs they sell, if it was the construction of the costumes and masks, and some of the history behind the performance, I'd buy them in a flash.