How-To: Pneumatic pop-up Halloween screamer
Instructables user Back Roads just posted this tutorial describing the low-cost pneumatic system he hacked together to build this haunted house prop.
Instructables
How-To: Motion-activated Tesla coil
Devin just submitted this video to our Make: Halloween Contest 2009. It’s a Tesla coil activated by a relay controlled by a microcontroller with a motion sensor. As Devin says, the coil is “very loud and startling,” and he intends to use it in a haunted house. He’s written an Instructable, too. Zap!
How-To: Install a ball valve on a cooler
If you’re thinking of building your own wort chiller for homebrewing, you might benefit from seeing how Instructables user iPodGuy installs a ball valve on a cooler.
Want a lathe? Make one from junk
This project is kind of mad, but the results could be pretty useful.
Instructables and EMSL Arduino contest
Here’s a really open-ended contest from Instructables: just use an Arduino!
How-To: Make a Proponomicon
There are two tutorials here describing the construction of a Raimi-style Necronomicon prop. The original, by Instructables user onespartan, is pictured above, and a derivative work by Raolin, is pictured below. Nice work, both of you!
How-To: Polished concrete desk
Instructables user hivoltage shows us how to pour and polish a concrete desk top, even with some embedded fiber optic cables. Looks great!
