The reunited couple have sent out a joint electronic Christmas card, in which they appear as breakdancing elves, to hundreds of their friends.
In the jokey greeting, photos of the pair's heads - along with those of along with those of Chelsy's brother, Shaun, and her best friends Kirsten and Pegs – are superimposed on the bodies of the dancing figures.
And the whole thing plays out to the tune of a jazzed up version of Jingle Bells.
The 'elf yourself' application has become popular over the last few years. It allows users to create Christmas messages by uploading their pictures and emailing a link for the finished card to their contacts.
With their romance firmly back on track, Harry is reportedly to join his South African love and her family on a sunshine holiday in Mauritius.
The third-in-line to the throne will apparently leave the royal family Christmas celebrations at Sandringham as soon as he is able and fly out for a week with Chelsy and her extended family.
But he will be back on UK soil at the beginning of January to continue his training to become an Army Air Corps helicopter pilot.