(at around 6 mins) Carolyn is playing a slot machine. On the front of the slot machine it reads "25¢" indicating that it is a quarter machine. Carolyn the gets up and a lady sits at the same slot machine. The machine now reads "$5".
When Walter is throwing cards in Three Card Monte, he has three cards from a blue deck of Bicycle cards. However, the queen of hearts he shows the spectators does not have the same face or design one would find in a Bicycle deck.