A slightly unusual subway marking...

Although it must of only been a day or two since the council white washed the subway walls in Cowgate, the tags, "if-you-want-a-good-time-ring" numbers, comments on people's sexuality, and other social messages have appeared - well overnight. This little beauty caught my attention because either it's a representation of a mutants genitalia, or someone actually wanted to dab a four leaf clover onto the walls...

I'll leave it to your imagination over the real meaning behind it ;)