My What Would Johnny Cash Do? (WWJCD?) stickers are a play on the What Would Jesus Do? bracelets. Thinking about what the Man in Black would do in any given situation seems to be a good rule of thumb to follow.
Like the Victorian English Empire, the sun never sets on these stickers ... well almost never. I have WWJCD? stickers posted in Guam, Italy, Scotland, Ireland, and across the US.