Did you know that Domino's in Brazil has created DVDs which release the smell of the pizza??!
With the help of thermal ink and the heat of the DVD player, the black disc will turn into a mini pizza image and emit the smell of melting cheese and pepperoni, once the movie is over!
Don't believe me?
Watch this YouTube video.
Domino's Pizza DVD
PS: I wonder how many pizzas they sold because of this...