To celebrate 25 years of publishing and its 74th issue, the San Francisco-based magazine McSweeney’s is offering a lunchbox packed with literary treats. Instead of a PB&J sandwich and an apple, the retro-inspired box includes sets of author cards, pencils that change meaning when sharpened, and artwork from the famed cartoonist and author of Maus, Art Spiegelman.

The artwork on the box references 20th century children’s books and illustrations rather than TV shows or superheroes. Inside of the lunchbox there’s a treasure trove ephemera, including three sets of baseball card-style author trading cards.

There are also three pencils, each featuring writing from Lydia Davis, Catherine Lacey and David Horvitz. As the pencil is sharpened and words disappear the meanings change. The lunchbox also has an anthology of writing 25 years of McSweeney’s Quarterly.