On my deck I used to have a little rusty planter lined with plastic wrap. It filled up with rainwater and bits of plant matter, and sometimes got vegetal oil-sheen on the surface. In the winter, it froze. I took photos, when I noticed. "Scrying" means "Divination through looking into a crystal ball or other reflective surface." The planter rusted through in the spring of 2018, but I keep putting photos here if they are mutlilayered/reflective. (I think the first photo in this gallery uses a Prisma filter, but the rest are unaltered.)