Many centuries ago, in a land far away, there was a butler by the name of Jeeves. A dignified old man, he was proud to serve his family, and he was most skilled at both his own tasks, and at the coordination of the household staff. So dedicated was he that he never actually seemed to get around to dying. Every generation, he was asked if he wished to retire, but every year he refused, saying simply, “This is my place.” It was not until his final master died a lonely death of illness, with only Jeeves to attend him, and no family to mourn him, that the ancient servant gave up his will to live, crumbling to dust on the spot as time rushed in to claim what it had been held from.
As further time passed, the town forgot its old noble family, and the dignified old man who had served so loyally. What did not forget, however, were the tools that Jeeves had used so long in his service.
Among these were the intricately detailed tea service that Jeeves had used to serve his wards tea and chocolate for literally millenia. Intricately detailed on the outside with gilded flowers, and with handles worn smooth by many centuries of use, a bit of the will to serve fled to these items when it was released by the old man. And so, they sit, awaiting someone to serve.
The magic of these cups and saucers is very simple. If you politely ask them to, they will serve a hot beverage to anyone, anywhere, appearing in front of the served, bearing four hot, steaming cups of the requested beverage. When the cups and saucers are placed back on the tray, full, empty, or any state in between, they will disappear, returning to the space where they were launched from. It is nigh impossible to keep the tea from serving itself, and over the centuries, it seems to have developed the habit of dumbfounding gaolers and wizards.
In any case, they will /also/ carry just about anything else placed on the tray, assuming it fits between the cups. The tray is not terribly large, and it is most difficult for even a child to fit between the cups. It does, however, serve quite well to deliver letters and similar small objects along with the tea.