How To Make Fake Blood.
Pour abt a quarter of a cup of corn syrup out of the bottle and replace it with water(a quarter from a mineral water bottle). Add blue (4 drops) and red (8 drops) food colouring and shake. Since blood is thicker than water and corn syrup, add corn starch (just nice to make the mixture thick) and shake again. Keep the fresh blood refrigerated to prevent smell as nasty as they looks. There you have it, easy right.

And please don't drench your favourite T-shirt: This blood will leave permanent stains. Enough time for you to prepare and pull a stunt on April Fools Day. Enjoy!!