A walk by the water in a winter cold and humid Stockholm made for a incredibly chilling experience. As I walked past a marina I started seeing more and more buoys in the water that had their reflections in the thin layer of water on top of the ice. The rule of odds came to my mind and I tried a few versions with different number of buoys in them. Three seemed to work just fine. The weather conditions forced me to be quick about it and I never got around to experimenting more than necessary.