Amy Duffy, a bus driver from Pittsburgh, Pa., has decorated a Port Authority bus with snowmen, Santa, elves, reindeer and other holiday designs as a way to spread holiday cheer. Duffy's hard work has been a delight for passengers who commute on her route every day. The bus even has its own Facebook page where locals are encouraged to submit photos of holiday memories made on the bus.Check out Duffy's Christmas bus in the video above!