Archives of American Art Americans last year sent more than two billion Christmas ... a swirl of blue. "This would sell well," says Savig, who, as it happens, worked for a greeting-card company ...

First, choose a piece of coloured card, this can be any size. Now it's time to cut the folded side out - make sure to get the help of a grown-up when using scissors. You can keep hold of the cut ...

and stick it down onto the blue card. Glue the post box on top, making sure you line the letter holes up. Add any extra details onto the front of your card, Hacker and Shini have added some snow ...

Photoshop CS6 Extended tutorial showing how to make a custom, Christmas card with your own greeting on a Christmas ball ...