1.   The next day, colour a little royal icing black and place in a piping bag with a fine writing nozzle.

2.   Reserving about a third for the piping work later, place the royal icing in a piping bag with a fine writing nozzle.

3.   Colour the remaining royal icing black, and place in a bag with a fine writing nozzle.

4.   Place a little royal icing in a piping bag with a fine writing nozzle.