Masterfoods will ask consumers to choose the next addition to packs of M&M's in a Global Colour Vote'. From next month, the company will be asking members to decide whether pink, purple or aqua should be added to the collection of crispy-coated milk chocolates. An on-pack promotion will explain how to vote either onlline, by text message or post, and everyone who participates will get the chance to win a worldwide trip. {{P&P }}