Nuala McGourty, director of retail at Buckingham Palace, said the café expects less recycling than in other coffee shops, as customers are likely to smuggle out their cups, plates and even trays as souvenirs. "But if someone would like to take a cup home, then we're very happy to offer them an unused one," she said.
Mrs Croot's son Daniel, 26, a pilot from Auckland, said the decoration on the cups was "pretty high-class" but he wouldn't take one as a souvenir — he planned to buy a more lasting memento at the gift shop.