EXCLUSIVE! Way to stifle your cat’s creativity, dude! First Published in 1998, Leo Cullum’s “Never, ever, think outside the box” cartoon is one of the most popular ever to appear in the New Yorker. Your favorite feline loving friend will love seeing it include their furry friends name on our personalized mug. Specify cat's name (15 characters max). Ceramic 4" mug holds 11 oz. Dishwasher and microwave safe. Allow 2-3 weeks. No rush delivery or gift box.