London - Some parents lavish time and money on creating a nursery that will help their children develop... and keep them out of their hair.
But a collection of stuffed animals and picture books simply won't do, according to Tatler magazine.
Conkers, rocking horses and a dead woodlouse are all vital for any posh nursery, the high society bible insists.
Little lords and ladies are also likely to get the same Georgian doll's house their grandmother enjoyed as a child.
It should be furnished with thimble chairs, tiny portraits and wooden beds, and should be populated not by Barbie but with Sylvanian Family figures.
And just like Prince George's nursery, a rocking horse is essential as long as it is wooden, old and rickety.
To prepare the child for "conker warfare" in the playground, Tatler says the nursery should be well-equipped with an arsenal of rock-hard pickled conkers.
One curious accessory that Tatler insists no posh nursery can do without is a dead woodlouse in a matchbox. Captured as a pet, it will inevitably perish in its new home, at which point parents are advised to say the creature is "just sleeping".
Nurseries should also feature a dressing-up box and a piggy bank for money though no notes given by the tooth fairy.