Brits may guzzle tea by the gallon, but it's the Germans who have brought it into the wedding-souvenir fold. Hamburg-based design label Donkey Products offers the "KaTea & William" greeting card, which includes two commemorative bags of German-grown black tea. Kate and William appear on the cover of the card flanked by Union Jacks, standing before Westminster Abbey and beneath a logo that reads, in English, "It all started with a cup of tea." On one bag, a caricature of the prince wears military garb and grins from ear to ear. On the other, the fiancée formerly known as Waity Katie wears a baby blue wedding gown and her enormous sapphire engagement ring that once belonged to Princess Diana.