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The design for three different kinds of LED fire horns are available for download on Thingiverse. They’re hollow so you can fit a strip of LEDs inside to light them up.
Make yourself a Ghostbuster by uploading a photo to put on the face of a 3D printed Ghostbusters figuring through 3D Systems.
Halloween cookie cutters
Instead of buying another package of cookie cutters at the store, just 3D print them using this free download on Thingiverse. There are a variety of Halloween cookie cutters available, including a bat, skull, ghost, and jack-o-landtern.
Daft Punk helmet
Need a quick costume? 3D print a Daft Punk helmet with this download on Thingiverse. The site shows you how to build DIY LED lights for the helmet as well.
Spiderweb window hang
Instead of buying cheap decorations at the store this year, 3D print your own with Shapeways. There are plenty of decorations to choose from on the site, and you can customize them as well. This is a spider web window hang, available for $13.
Instead of printing accessories for your pumpkins, just print the pumpkin itself. Here are downloads on 3D Systems for bat, pumpkin, and spider decorations for your home.
This user created and uploaded a design for the helmet worn by the superhero Ironman. The helmet is made with a few different pieces. Download it here.
Skull candy mold
Use this 3D printed skull mold to make little chocolate skull candies to give out on Halloween. Maybe one day, you’ll even be able to print the candy at home, too.
This free download for Jack-o-lantern attachments is available on 3D Systems. Choose from tentacles, bat wings, and horns.
3D Me Horror
Cubify has also launched 3D Me Horror, which allows you to turn yourself into a Halloween-themed figurine. Print yourself as a vampire, witch, zombie, mummy, or one of a few other creepy characters.
This 3D printed gas mask could be perfect for your “Doomsday Prepper” costume. This guide on Adafruit will show you how to build and print the LED-powered mask.
All this lantern needs is an inexpensive tea light from a craft store to light up a room or your yard. Available for download on Thingiverse.
Remember those cheap little spider rings you used to get at Halloween parties as a kid? Now you can 3D print your own. This simple design is also available on Thingiverse. ‘