A commemorative mug brought out to celebrate the Royal wedding has one slight flaw - the wrong prince. Beaming out from the side of the mug, alongside Kate Middleton, is her future brother-in-law Prince Harry. On the back, an inscription reads: "The fairytale romantic union of all the centuries. 29th April 2011." It's not clear whether it is a gaffe, a deliberate spoof or a very clever marketing ploy. The mug, supposedly designed by a Chinese firm Guandong Enterprises, can be purchased for £9.99 plus postage and packaging. "Crafted in the finest bone china, it features an exquisite design of the happy couple with ornate gold detailing to honour this great moment in history," the company boasts on its website. "Please be our guests to own this esteemed, limited edition heirloom to celebrate with your work associates, friends, family and loved ones on 29th April 2011." The company adds hopefully: "You are welcome to purchase now to avoid disappointment and regret." The small print states the firm's products "are not supplied to, or approved by, Prince William of Wales, Catherine Middleton or any member of the Royal Family." A St James's Palace spokesman admitted he was aware of the unusual piece of memorabilia but declined to comment. Source: orange.com