- Two calendars (1988-1989 and 1989-1990)
- A textbook called Teaching with Calvin and Hobbes
- One t-shirt for a traveling art exhibit"
19 November 2008
19 November 2008 - Neatorama
"Actually, almost anything you see with Calvin and Hobbes on it is copyright infringement. Here is the complete list of things Bill Watterson has approved for mass production: