One of my favorite illustrators, Adrian Tomine, has started offering prints of his work, including these two sublime New Yorker covers. They measure 18" x 24" and are gorgeous (I have "Missed Connection").
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.