Using the idea of the inkjet printer, in which small nozzles shoot ink at the required area, the idea of inkjet - printed biological cells was considered. (faith.org.uk)
Mix the flour and water for the crosses and pour into a small piping bag with a very small nozzle. (saffrontrail.com)
Pour the batter into an icing bag with a small nozzle (small enough to fit into the egg holes) and squeeze the batter into the egg shells until about 2/3 full. (wallflowerkitchen.com)