Little Acorns in Washington Tyne and Wear have sent pictures and suggestions for names for the new baby to Kensington Palace.
Active Learning in Finchley made a plaque and card which they hope will be hung up in the palace nursery.
Children from Tops Day Nursery in Bournemouth presented a rabbit toy and card to the first baby who was born after the prince at the nearby Royal Bournemouth Hospital.
Hopscotch Nursery at Portland Road held a tea party and made banners and crowns in honour of the newest addition to the royal family.
Children at Kiddi Caru Nursery in Wellingborough celebrated the birth by making their own crowns.
Playdays Daycare Nursery in Blackrod, Bolton took guesses at what the royal baby's name would be, with 'Ruth' guessing correctly with George.
