As a kid I always wanted to write my name or leave my handprint in a freshly poured sidewalk. I never got the chance. There was a section of one that had leaf impressions that were really cool looking. My favorite though was one where someone accidentally walked through it. The first few footprints are normal but then they freak out and smear off to the side. I wonder if that person walked by it and laughed or cringed each time.