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How to Make Twig Pencils
These handsome twig pencils couldn’t be any easier to make.

Make a Waterproof Bike Light from Soda Bottle Caps
This automatic bicycle light from recycled and found parts is about the most eco-friendly DIY bike light in the world.

Power Washer Art
I am going to show you several ways that you can draw pictures on sidewalks and buildings using a pressure washer

Build a Raspberry Pi Powered Home Arcade
The Raspberry Pi can be the beating heart of a classic video arcade machine. And who doesn't want one of those? Pair it with an Arduino Esplora controller and play all your favorite arcade games from the 8-bit era.

LED Tank Top
Use conductive thread to make a wearable LED display.

Build Your First Tricopter
Tricopters fly smoother than quads and make better videos. Build the Maker Hangar Tricopter and see for yourself!

Raspberry Pi Pranks: Internet-Controlled Car Horn
This year for April Fool’s Day, I decided to build something out of the ordinary.

Emergency Lighting System
I am going to show you how to build a DIY emergency lighting system that will automatically turn on when the power goes out

Pi Spy Surveillance System
The Raspberry Pi B+, Pi Camera Module, and free MotionPie software make it easy to keep a discreet eye on things

Arduino-Powered Pinewood Derby Race Car
John: My son is in Cub Scouts, and for years we’ve been building Pinewood Derby cars.

Million Color HSL Flashlight
Bring fun back to the flashlight with Arduino and full-color NeoPixel LEDs. Just twiddle the knobs and dial up any hue, saturation, and light level to create millions of colors — and 10 fun flashlight modes to play with.

Battery Clip Transistor Tester
Build this simple tool for testing TO-92 package NPN transistors.