Outhouse in Winter
At a young age I asked my great-grandmother why one outhouse has a crescent moon on the door and others had a star. Two reasons I was told.
The crescent moon cutout and the star cutout on the door of many outhouses goes back to Colonial times. Few people could read, the crescent moon was the symbol for women while the star cutout was for men.
Another reason, the symbol was usually above eye sight. It let sunlight in during the day and moon light during the night. Outhouses didn't have electric - thus, no light.
From Door County, WI Assorted