tie your dick and ball up to your neck. tie your ankles together. tie your hands together behind you. get face down and make a circle around your yard or in a park.
Just make sure your careful in the snow, at 0C it only takes 20 mins for a naked human to die from exposure. So whatever you decide to do, just make sure you can get out and get warm quickly if anything happens.
the page doesn't seem to load at this moment but you remembered me of a website: http://www.chillygirls.com/ for preview, I believe you can find their movies on redtube or xhamster
I don't suggest the extreme, the cold baths are for the ones who can handle. Bondage ideas in the snow. Pick a warmer day, not windy (so you don't play at freezing point).