In Colin Hardie's Latin oration celebrating Tolkien's honorary doctorate in 1972, Hardie refers to a button inscribed "vivit archimagus," that is, "the archmage lives," which I can only assume refers to Gandalf. I know of "Frodo lives" and "Gandalf for President," but I have never run across a button like this one.

Has anyone else seen a button like this, or is Hardie's memory faulty?