I was out walking around the other day and shot this by just holding the camera out to about what I thought was close to minimum focusing distance, letting it autofocus and firing (i.e no viewfinder, no live view). The shot was nothing special, but then I decided to see how it might look heavily cropped. Shot on a K-7, nothing done to the out-of-camera jpg but cropping, and resizing in iPhoto for export to smugmug. The first shot is the original, just for reference.
Here's the crop. I think it holds up pretty well, at least for screen viewing.