“Goodnight room, goodnight moon. Goodnight cow jumping over the moon...” A children’s classic that already is a candidate for the all-time best feel-good book, “Goodnight Moon,” has gotten a boost: A 鶹Ƶ team printed the first 3D version of it, allowing visually impaired children and their families to touch objects in the story -- like the cow jumping over the moon -- as it is read aloud.