Pour five bottles of white glue into a large bowl.
Add 2 cups of liquid starch into the glue. Use your hands or a fork to mix them thoroughly. Wear a smock to protect your clothes.
Add three drops of red food coloring and one drop of black food coloring. Mix to make a dark red.
Pull out the large substance as it hardens. Set it on a piece of wax paper.
Mold the shape of the liver. A basic liver includes a large rounded section and a small section, forming a rounded triangle.
Set it in the refrigerator overnight. The substance will harden but retain a slightly soft texture.
Keep the fake liver in an air-tight container when it is not in use. This prevents it from drying out.