One of the many products that we love here at Mora Ceramics is our double walled ceramic travel mug. This mug has received a lot of great feedback, but just as many other great products out there on Amazon, has also received a little negative feedback. In this article we will talk about why I designed this ceramic travel mug, how it is assembled, and also answer the question: “Why does my mug have a hole at the bottom?” Read on for a hole lotta puns.