Who will be first to say they have seen one?
"We are running a little short on gold paint, which is testament to Team GB's success. We'll be getting more supplies tomorrow," he added.
Royal Mail has pledged to transform one postbox from red to gold in the home town of every British Olympic champion during the Games.
Unfortunately, they have got one wrong, in Harlow rather than Cheshunt, for cyclist Laura Trott, but it will be good to see lots of gold boxes around the country soon.