The document describes various 3D direct mailers used to promote different products and events: 1) A magnetic safe mailer promoted a lube product and offered dealers a chance to win gold. 2) A photo album mailer showed foreign locations and included dialogue to immerse recipients. 3) Musical instrument miniatures in boxes promoted a Nestle event with the theme "Orchestrating a new symphony". 4) An interactive Diwali card transformed crackers into candles through die-cut windows.