I had one picture in mind, which I had taken in the late 1970's, which I thought would be perfect for this challenge. But I spent several hours looking for the picture without success. Then I looked at every picture I had scanned into my laptop, because I knew that a while back I had indeed scanned it. Again, no luck.
This weekend, I was perusing some files on the desk top computer when lo and behold, there were three version of the picture, all already tweeked with different themes.