Things You'll Need
Red and green food coloring
Throughout the year, there are fun games that can be played, through trick or treating or pranks. One addition to most good pranks is the use of fake blood. Fake blood can be made a variety of ways, including with gelatin. Fake blood can be added to recipes, to make a gruesome look for your next dinner party. A fake crime scene can be created and fake blood spatter can be added as well. Another idea is to use fake blood to add to a gruesome costume.
Mix together 3 tbsp. of corn syrup, 1 tbsp. of water and a few drops of red food coloring. At this point, the mixture should look like a transparent red liquid. Add a few good squirts of chocolate syrup, along with a tablespoon of cornstarch to thicken the mixture. To make the coloring more realistic, add a few drops of green food coloring.
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Create a mix of equal parts gelatin and water. Place the mixture immediately on its final resting place. It can be used for clumpy wounds or lumps of flesh. The mixture will be yellowish in color, so to make it bloody, add the mixture from Step 1.
Crumple up toilet paper to create even more "gooey" wounds. Dip it in the mixture from Step 1 and apply directly to the "wound." This mixture does not dry as quickly as the one created in Step 2, so it can be used in addition to the gelatin mix or in its place.
Store your fake blood in a plastic bag in a freezer until it is needed. However, the gelatin mixture may be too hardened to apply. Do a trial run prior to your event to ensure that the blood is up to standard.
To create a gross food for display, add olives to your blood mixture to create a bowl of floating eyes. All of this can be eaten, except for the toilet paper mixture. However, it would not be advised that you eat the mixture.
Always remember safety first. Make sure all people involved in the situation know that the blood is just a prank. And, if someone should get hurt, quickly remove the fake blood with water to find the source of any real blood before calling a doctor.