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Home base for Matson and Even is the 10th floor of a pre-war building that looks out over Brooklyn’s Grand Army Plaza. (From their living room they can see the fireworks that shoot off over Coney Island on Friday nights.) Shown here is a typical Mary & Matt vignette: bright colors, nostalgic titles, and the simple typography of Scrabble tiles, which inspired their first dark-chocolate bars. “It was huge on the internet until Scrabble nixed it,” says Matson. “But in a way, that was kind of cool — getting a cease-and-desist from Scrabble?”