I published a watchface for Pebble smartwatches that shows you the nearest Wikipedia article that lacks a photograph. Have a Pebble and like to — or want to — contribute to Wikipedia? Try it out! It’s called Diderot. (Collaborators welcome!)
After using it myself for about a month and a half, I’ve finally added photographs to all the Wikipedia articles near my house within the range of Wikipedia’s ‘nearby’ API.
Extra thanks go to Albin Larrson, who built the WMF Labs API that my app uses to find nearby unillustrated articles. The great thing about it is that it filters out articles that have .png or .svg images, so you still find the articles that have only a map or logo rather than a real photograph.
What about photographic PNGs?