I just got a great idea for a custom deck. The back would be a huge collage of national landmarks, such as Mt. Rushmore, the Washington Monument, the Golden Gate Bridge, etc. The faces would be printed with pictures of chess pieces, baseball players, and cartoon characters. They would be printed on receipt paper, and finished with spider silk and human tears.
Or. . . you could use the cards you already have to perform magic you already know, and stop buying things just because they're pretty.