McDonald's has launched a limited-edition gold signet ring in celebration of King Charles III's coronation.<br /><br />Fifty of the 9ct bands, each with a unique engraving, will be available through a themed competition.<br /><br />The fast food chain is also slashing the prices of some of its food items for the Bank Holiday, with products such as single egg McMuffins and McPlants reduced in a nod to His Majesty, who reportedly prefers to follow a mostly plant-based diet.
