Introducing the all new "Paper Planes" coffee mug. There are some coincidences that are so incredible, so hard to believe that they leave you shaking your head in amazement. In the new "Paper Planes" collection, we've captured one such bizarre "coincidence" which may not be a coincidence at all. A phenomenon occurring when you fold each US bill from a $5 bill up to a $50 bill, into a paper plane shape and lay them out from the smallest to largest denomination. As you will discover, the sequence resembles the explosion and collapse of the World Trade Center towers in uncanny fashion. Step by step.....from initial impact, the ensuing fires, collapse and smoking rubble. How could this possibly be a coincidence. These cups hold 8 ounces of piping hot coffee, and are dishwasher and microwave safe.