I have five or six of them, all with cat themes. I need that many, because we only run the dishwasher every other day, and I have certain mugs reserved for coffee (my morning beverage), and others for tea (my afternoon/evening beverage of choice).
The mug that I have my coffee in every morning is my favorite one! It's a huge, 16 oz. Marvin The Martian mug. I like it, not only because it's huge, but it has a nice skinny handle that's comfortable to hold, while carrying it around the house in my usual fog, until the caffeine kicks in...