This prompt requires you apply your imagination to something that already exits. I have one example that will be looked at two different ways. Recently a tree branch fell from one of the large city trees planted on the other side of our sidewalk. From one angle it looked to me like a big spider and from another angle it reminded me of the flying predators (Ikran) from the movie Avatar.
Big, ugly spider
So find an object that could be viewed as something else and write about it wandering the neighborhood, city, countryside or where ever.