I was helping my husband apply film to our windows today and stared at my image as I held the film and he sprayed it with water. My image reflected clearly but as he sprayed it shimmered like in a pond...but clearer. Of course my mind went to the possibility of a fantasy story. Hope it does the same for you.
Pumping Your Muse Prompt:
Your challenge today is to use this sentence in a short story.
"The image shimmered as if in a liquid mirror. "