While visiting the Manchester Art Gallery, I discovered the artist Jai Redman. His watercolor series portrays still life using representative water sources — Beauty of Bath uses juice from the apple itself. In these paintings, once the water is used up the painting is done!
In this case, Gavin Turk’s Ergo Sum (the bronze apple core under the painting) provides an intriguing juxtaposition.
There are many paintings by Redman on exhibition (in this series and others), and entry to the gallery is free, so if you’re in Manchester I recommend stopping by for a visit!