Weeds in my backyard
I don't know how much interest this will generate among the Flickr crowd, but I think it's worth a try. The subject is one of the most ordinary things imaginable. I went for a swim in our backyard pool shortly before sunset, and during a pause at the east end, I noticed the light effect on these weeds and the contrast with their background. I went inside to grab my camera and took several pictures while standing in the pool. This one was my favorite.
(Update: As I mention below in one of my comments, this picture of a couple of ordinary backyard weeds made Explore. I've just learned that it was ranked as high as #11 -- as far as I know, the highest ranking of any of my images that has ever attained that Holy Grail of Flickrdom -- and then was suddenly dropped. It might reappear, of course, but this illustrates how capricious Explore can be. Go figure.)