The plasma pals make great lab decorations and they love explaining the immune system to kids.

You will need:
-Cotton yarn in colours shown in image above (DK acrylic would also work)
-Darning needle
-3.00mm crochet hook
-6mm, 8mm, and 12mm plastic safety eyes
-Wire (for the antibodies shape)

Individual sizes (along longest side):
-Large red blood cell: 6cm (Ella Erythrocyte)
-Small red blood cell: 5cm (Edward Erythrocyte, Ella’s little brother)
-white blood cell: 6cm (Lola Lymphocyte)
-Platelet: 6cm (Percy Platelet)
-Antibody: 11cm (Alan Antibody)