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Pumpkins? Fake blood? It must be nearly Halloween. Time to get those decorations out there.... This is a quick guide to make your very own blood drooling pumpkin.

Step 1: Gather Some Stuff for Your Thing

You'll need a few things to get started: A large bowl, a small fountain pump with a short length of tubing, and a small plastic container. I used an old pump I had laying around and an old CD spindle. Remember that the container must be big enough to hold the pump, but small enough to fit well into the bowl. Any container will do, but I did find that the CD spindle cracked easily when drilled in the next step. You will also need some filler material. I used aquarium stone, but you could use just about anything. You could use sand, but extra care must be taken to ensure that it is not ingested by the pump. Finally, you need your pumpkin. The one I used was hollow blow molded plastic with a light in the back. Last, you will need some blood. Many stores sell fake blood in large bottles, but you won't want to use too much. Fake blood is often very viscous and little fountain pumps may not like it. I diluted my fake blood with water.

Step 2: Fun With a Drill

The purpose of the small CD spindle is to allow the blood easy passage to the pump through the stone. Depending on your fill material, you may find that the intake of your pump does not have enough surface area to allow the blood to filter through. Drill lots of holes through your container. Use a bit that is just smaller than your fill material. I found that the holes shown in the picture were not enough, so you really need to drill a lot. You will also need to drill a hole in the top of the container for the hose, and a slot near the lid for the power cord. When you're done, toss the pump in that bad boy and you're almost done.

Step 3: Fill With Fill and Drill With Drill

Place the pump in the bottom of the bowl and fill it up. I found that I didn't have enough stone at first, so I placed some rocks in the bottom to take up some more space. Next you'll need to drill a hole in the bottom of your pumpkin just large enough to feed the hose through. I made the mistake of hacking it out too big, which turned out to be a problem. We are, after all, trying to fill the pumpkin with blood...

Step 4: Finishing Up and Making Adjustments

Fill the bowl with blood and water, just below the surface of the rocks and trim the hose down so that it fits inside the pumpkin. Leave it a bit long at first. I adjusted it so that the flow of blood from the pump sprayed up into the forehead area so it would pour down out of the eyes and mouth. You may find that as the pump is running the pumpkin will fill with liquid and the pump will draw air. You may need to add more blood, or add more holes to the container so that the blood can flow more freely back to the pump. This project could also be done with other types of decorations, next year I may try a bleeding headstone. Let me know in the comments how yours turns out.
Instead of a drill, which you've said can crack the plastic, you might be able to use a soldering iron with a plastic-melting tip. Of course, this should be done outside because of the plastic fumes. Whenever I finish melting holes in plastic, I let all the plastic residue burn off the tip before unplugging it. Very cool project!
I've added a video so you can get a better idea of how it behaves
Yes! video, please ;-)
This looks really cool, and something I definitely want to try, I just wish there was a video so I could get a better visualization.. Thanks for posting!

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