I've stumbled on an excellent collection of mud volleyball photos from Ohio. These guys really know how to do mud right. And the players all seem to want to get completely covered so there are lots of really great pics. I'm going to a game in CT in a week or so and people there don't generally get so dirty. Anyway, this is my favorite type of pic and I hope you enjoy.
https://www.facebook.com/DaytonMUD/photos_stream?tab=photos_albums

thanks for sharing!
A pity that these events are not regularly happening in Germany... might be the climate?