Snow bocce is played on freshly fallen snow; it needs to be the kind of snow that is good for snowballs and snowmen. It follows all the usual rules (see, for instance, wikipedia: bocce) except that the pallino and balls are all made out of snow. As a result, the balls change size over the course of the game. Rolling across fresh snow, they can get larger. If they are thrown too far, they may fragment into multiple pieces. In that case, count the largest fragment for the purposes of scoring. The other fragments may be left where they fall.