Max Ernst (2 April 1891 – 1 April 1976) was a German painter, sculptor, graphic artist, and poet. A prolific artist, Ernst was one of the primary pioneers of the Dada movement and Surrealism.
Source: Wikipedia, "Max Ernst", available under the CC-BY-SA License.
The black and white badge is his "gaming" artwork, The King Playing with the Queen.
The colored badge is his Fountain at Amboise.