More than 243 million pounds are expected to be spent by Britons to celebrate the arrival of Prince William and Kate's baby.
The royals are set to cash in on the birth as the Duke and Duchess of Cambridge have brought out a baby range ahead of the arrival of their first child, the Daily Star reported.
Their Royal Collection Trust website is offering a host of royal-themed babygrows, which include a Guardsman sleepsuit for 12.95 pounds, and pink Princess cushions and toys.
Meanwhile, Prince Charles is selling handmade Union Jack baby shoes for 22.50 pounds, plus shoes with tractor designs at his Highgrove shop.
Cash raised from sales will be invested into the maintenance of the palaces and their art collections.
Kate's parents Carole and Michael Middleton have also brought out a baby arrival range on their Party Pieces website.