Take two sheets of colourful A4 card ... your sock. Use a marker pen to roughly draw an outline 5mm from the template, leaving the top (which will be your stocking opening) marker free.

Before they departed, John and Jacqueline Kennedy had already selected and ordered their annual Christmas card: a 4 1/2- by 6 1/2-inch Hallmark card, custom made for them, bearing a color ...