Faces everywhere #7

Already day seven of my personal faces challenge! I set myself this challenge one week ago, just because I like the idea of spotting faces in everyday objects. I originally had it in my mind that I would do it for one week, but I had so much fun with it that I haven't decided yet if I will continue it a little bit longer.

I found this one in the pavement on the way to a friend. I think it is a cover of a water pipe or something.