Slinkachu is a well-known street artist, but not in the traditional sense. He leaves tiny hand-painted figurines in random places all over the city. The effect of seeing delicate figurines left alone in the big, scary city works surprisingly well. Here, a safety-conscious skater (note the knee pads and helmet) shreds an orange peel.
I love how this idea demonstrates that creativity can be big ideas and small ones, too.