When Don brings back Sally's stuff, she finds her suede belt. She puts it on, the beige segment is on her left (our right) and the black segment is on her right (our left) (at around 3 mins). Tommy, Harry and Vicky enter the kitchen. Next time we see Sally (at around 11 mins), the beige and the black segments have traded places. After Tommy says that the floating casino is the size of two football fields, Sally gets up, and the belt segments are back at their original positions (at around 3 mins).