GIANT MICROBES 5"-7" Red Blood Cell Erythrocyte Microbe Plush Toy The life of the party, his best trick is to hold his breath until he turns blue. Invite him to your next bash and he's sure to show you a bloody good time. Fun reminder to donate blood. Laugh with your friends and family as you give them something unique. They make great learning tools for parents and educators. Educational item for medical and health professionals.