This is a good card if you need something that the children can turn out quickly - even "assembly line" style! There are lots of pretty Christmas ribbons available in the shops with pictures on them. Alternatively, you could of course use pictures cut from last year's Christmas cards, or you could buy a piece of Christmas quilting fabric - the kind with lots of small individual pictures.
You will need:
A card blank
Decorative paper of fabric
Cut a piece of ribbon with a complete picture. Cut a piece of paper slightly larger than the ribbon, using decorating scissors if you like.
Glue the paper to the card and the ribbon on top of the paper.