Of course, there's no requirement in reflection photography that the reflective surface has to be flat. Droplets are a great example of this. All around us, after a rain or after the sprinkler goes off or after the morning dew, they provide a curved window into reality, reflecting and refracting the light in often spectacular ways. Alone or in groups, in focus or out, they sparkle or they shine, they complicate or clarify an image.
However, with such small things being the subject of your photo, you'll have to take some especial technical care. A primer in f-stop, aperture and general macro photography is an absolute must. In addition, a good dose of patience is required, to get that reflection—or reflections—exactly right. The patience definitely pays off, however, and the creative potential is boundless.