What is claimed is:
1. An article of manufacture which is constructed to receive and hold a plurality of syringes of differing size, said article comprising:
a substantially rigid frame having a plurality of tiers formed thereon, each of said teirs having a top surface;
a plurality of syringe-receiving cavities formed in at least one of the tiers, each of said syringe-receiving cavities being sized and configured to receive and hold a syringe in a generally vertical orientation;