At work recently we were discussing Stefan Sagmeister and one of the pieces of work that came up was a poster for Adobe created with coffee cups, working to a small budget they took over a whole floor space of an office, filled 2500 cups of coffee and shot the work from above. The tones of the piece were created with differing shades of coffee, some with more milk and others with less. Recently this same technique was used in at the Rocks Aroma Festival in Sydney, Australia to recreate the Mona Lisa with coffee measuring 20 feet high and 13 feet wide. The result is stunning and works really well as a piece of street art.