I've flown off an ice bike or two, and I actually prefer crashing in the snow to any other environment I might crash on. The snow is soft, so it usually helps keep the bike intact and allows for me to laugh at myself while I'm trying to get up. One time I low-sided and flew backwards down the ice (I looked like a turtle sliding on it's back), and there really wasn't much I could do except laugh as I slid back and flailed my arms.