Chocolate Blood

Directions

1. 1
   Mix cocoa powder into the water before adding the other ingredients.
2. 2
   After adding the rest, blend well, then wait for it to settle a bit.
3. 3
   Either skim the bubbles and chocolate scum off the top with the edge of a facial tissue, or pour the mixture into another container.
4. 4
   The longer it sits, the more the cocoa tends to settle to the bottom, which oddly mimicks the effect of real blood separating.
5. 5
   If you splatter this mixture onto cloth, it makes neat two-part marks which dry into pretty convincing bloodstains.
6. 6
   If you let it run from a victim's mouth and then let it dry, the blood darkens and cakes to the skin in much the same way real blood does.