Santa (or Father Christmas) is very careful to write a letter to every child with his best quill pen, and he likes to draw little pictures in the margin. This year he has had quite an adventure with the elves, the moon penguins and some icing.
Of course this means he spends far too much time on each letter, so he’s got Rudolf to help by licking the stamps, and he’s asked me if I could help the Elves post them to everyone.
In your letter, your child’s name is handwritten with pen and ink on to Santa’s uniquely illustrated Christmas letter. 
It’s printed on high quality parchment paper, folded (like very old letters), wax-sealed with Santa's jolly red ‘S’, and your child's name and magical Christmas address are handwritten with his big quill pen on the front.
The address can be as magical as you like  -  Olivia, under the Christmas tree, the house next to the invisible Fairy Castle.
FC likes to say hello to your child's best toy or pet too. 
And of course we will post them to wherever you are by Royal Mail Signed For - the Elves will help!
A lovely letter to find on Christmas Eve, Christmas Morning on the empty biscuit plate, or even by chance later on in the day when it's time for a quiet snuggle and a hot choclate.
I'll date it for 2023 unless you tell me otherwise.