Colour Change Wine GlassThe downside of throwing a party is that guests can't always be relied upon to sparkle, so it's as well to have a flashy effect or two up your sleeve to avoid those conversational blackspots. If the chit chat should falter, simply press the button on the base of your glass and it will come to life and create a real buzz of delight amongst your guests. With seven rainbow colours to choose from, the style conscious will be relieved to learn that glass