Made by Out Of Print. Check out this awesome Blue Library Card Mug. A blue mug that, yep, you guessed it, looks like a library card. Imagine reading a book and drinking out of your library-themed mug. Pretty good, right? Happiness is a good book and a warm drink in a fun mug. Treat yourself and maybe the librarian to a Blue Library Card Mug. Unique coffee mugs for avid readers.