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Spooky Window Silhouettes With Follow-Me Eyes
A monster cutout in your window blocks some of the light behind it and casts a spooky shadow.

Mad Monster Candy Snatch Game
Here’s a classic toy reimagined for you to make just in time for Halloween candy-giving and party fun. It’s the Mad Monster Candy Snatch game, which combines the nerve-wracking dexterity of the old classic Operation game (BZZZZZT!) with a fun monster head–shaped candy dispenser. Make those little goblins earn their treats with this tricky game!

Trash Can Trauma
Scare the wits out of visitors with this pneumatic spook

White Chocolate Skulls Cast in 3D Printed Molds
Create your own custom spooky halloween skull treats using this configurable, parametric 3D printed mold form. Created in OpenSCAD by combining a scanned skull with a parametric box to create a food-safe silicone chocolate skull mold.

Make a Glowing Jack-EL-Lantern
Tired of the same humdrum pumpkin carving routine year after year?

Dark-Detecting LED
Build a simple light-sensing circuit that switches an LED on when the lights go out.

Circuit Stickers
Just peel and stick LEDs, sensors, and even microcontrollers, to make instant circuits.

Hot Glue Web Gun
Make a spider web shooter that’ll surely spread the creeps.

Vomiting Doll Punch Bowl Fountain
Nothing signifies a rousing shindig like the distinct sound of splattering vomit, especially when it's a Halloween party based on the infamous horror film The Exorcist!

Arduino-Controlled Halloween Props
I worked out a system that lets you control all your animated Halloween props with a single microcontroller.

Sound Card Oscilloscope
Turn your computer's sound card into an oscilloscope to measure limited electrical signals, using Windows software and a simple circuit.

Ultimate Fog Chiller
Chilled fog creates an appealingly eerie blanket on the ground. Most homemade fog chillers use a drink cooler and PVC tubing, but that design doesn’t keep the fog in the holding area long enough to chill it properly. Our fog chiller is very easy to build and does a great job of cooling the fog.