It goes without saying that a radio controlled mini flame thrower can be nothing but a bad idea and you should never, ever build one. But once you watch the video below, you’ll be tempted to try. But don’t do it – you’ve been warned.

That said, the video below shows that [Make-log]’s remarkably compact build is chock full of safety interlocks and sports a thoughtful and informative user interface. It’s fueled by a small can of spray deodorant whose valve is actuated by a servo and ignited by a spark-gap igniter.

MAKElog#15a tiny RC Flamethrower
https://www.youtube.com/watch?v=wuppCyxUuEo

The RC Flamethrower uses 35 ml deodorant spray cans and electric sparks to deterministically shoot out

Alek’s Controllable Halloween Decorations for Celiac Disease
Use the three halloween webcams for a live view of a buncha halloween decorations & lights and also CONTROL them

When you have a CNC mill sitting around, it almost seems anachronistic to pull out a kitchen knife to carve a pumpkin. You can hardly blame [Nathan Bentall] for choosing an endmill instead.

3D Selfie Jack-o’-Lantern
AKA: – CNC Pumpkin Carving of 3D Head Scan
http://nathack.blogspot.co.uk/2015/10/cnc-pumpkin-carving-real-faces.html

[Rich Fiore] didn’t want just another set of spooky decorations for his house. He wanted something interactive. By combining a projector and some IR sensing, he turned his whole house into a Halloween-themed shooter.

Haunted House Game
https://vimeo.com/142852813

Part video game, part building projection. This is a beta test of a large scale projected video game. The game matches the projection with the building. This is the first projected test to iron out the bugs in the camera mapping process, the projection alignment, and the gun targeting system (the gun is not in view but the infra red markers are visible in front of the house)

[Dave’s] voice changer uses a Raspberry Pi which isn’t all that complicated. The Pi uses Linux, and Unix–the predecessor to Linux–has a long history of having little tools you can string together to do big jobs. So once you have a Pi and a sound card, the rest is just some Linux command line wizardry.

[Dave’s] voice changer is pretty much just some off the shelf parts and a script so simple it hardly qualifies as programming in any real sense. In fact, it is essentially one line of “code”

For an awesome Halloween edition of [PrankvsPrank], they decided to make a remote controlled “magic carpet” for [Aladdin]. It’s absolutely fantastic.

As you can probably guess, at the heart of this magic carpet is actually an electric skateboard.

ALADDIN MAGIC CARPET PRANK
https://www.youtube.com/watch?v=lqlrru1V69E&feature=youtu.be

For [Rick]’s number four hack of the month he gives us the Fire Breathing Jack-O-Lantern of death! This isn’t a new idea but it is a very unique and simple implementation.

A small candle is used to ignite the flammable spray, which shoots out 5 to 10 inches from the pumpkin’s mouth when triggered by the ultrasonic sensor. It couldn’t be simpler. The most challenging part was getting the large air freshener dispenser in the pumpkin with the flames coming out the mouth.

What takes eight hours to solder and uses more shrink tubing that you thought imaginable? An LED matrix installed in a real pumpkin. When I mentioned that we’d like the LED pumpkin in last Friday’s post scaled up to a full LED matrix I had no idea it would be me doing the work. But [Caleb] and I thought it might be just the thing to present for the hacker’s favorite holiday.

Installed in the autumn vegetable is a marquee made from a 5×14 matrix of light emitting diodes.

Planning to make that carved a pumpkin last past Halloween night? Forget the tealight or LED candle—here’s an easy, no-solder project that will make it extra special. By default, this jack-o-lantern looks like it has a flickering flame, but get close enough to it and it goes crazy with color.

All you need is an LED matrix, a Rainbowduino to drive it, a PIR motion sensor to trigger the random colors, and a power source. [Alpha Charlie] kept the electronics from becoming pumpkin-flavored with some plastic bags.

Motion Sensing LED Jack-O-Lantern
An Electronic, LED, Motion Sensing Jack-O-Lantern for Halloween
https://hackaday.io/project/8240-motion-sensing-led-jack-o-lantern