Will and Kate's conjugal arms

Her Majesty Queen Elizabeth II has approved the conjugal arms of the Duke and Duchess of Cambridge, a combination of the coats of arms of the Royal Family and the Middleton arms.

The pair of shields is supported by by the royal lion and unicorn. William's shield is surrounded by a blue garter, for the Order of the Garter, while Catherine's is surrounded by a wreath of oak, to balance out her husband's garter.

The BBC article includes a full explanation of the arms.