I have always had a love affair with maps. They can be a beautiful representation of places we've been or places we want to go. I wanted to display a map in my home, but wanted to be creative with it, so I created this paper cut map. FYI: I originally created the map a few years back, so for the purposes of this instructable, I'm creating a smaller example for the step by step instructions.
Supply List: map (It's important that the map be a detail of a city so that the streets are large enough for you to cut around. My large map was a tourist map from a hotel that I got when traveling. The example in the following steps was printed from an online map.)
paper larger than map (I originally chose to use plain white paper for a minimalist effect, but since my second map is much smaller, I decided to use a magazine image from a large fashion magazine. I would have loved to use an image of the town in the map. Perhaps someone else would like to go that route.)
tape
x-acto knife
optional: frame
While it might not be as effective as a rain gutter, a paper towel or toilet paper tube can get the job done for simple cable management behind your desk.All you have to do is cut the tube open lengthwise, and feed your cables through. You could do it without cutting, but this makes it a lot easier to work with. Once you're satisfied, just attach it to the back of your desk to filter all of your cables through one spot. I set mine on a windowsill behind the desk because I didn't have any duct tape at home, but that would work well assuming there's not too much weight or tension on the cables inside.Obviously, this isn't going to solve all of your cable management needs, but it's a free, halfway way to route them somewhere a little less visible. This trick doesn't have to be limited to just desks, either. As we've previously mentioned, these tubes also work greatfor holding your spare cables in storage without any tangles.
The fact that you can read this Instructable proves that you are the owner of an internet-capable device already, and don’t need an iMac, in case you don’t already have one.
Paper: You could just use normal printing paper. But paper with about 160 g / m2 looks more professional. The great thing is, that the unevenness of the paper gives it the texture of brushed aluminum (So don’t think that my template is sloppy because it looks too slick). Glue, scissors,.. And other optional crafting stuff, like tweezers, pins, mini scissors, cutter. Transparent Tape (recommended) 
This Instructable is all about the amazing technology of paper electronics and conductive materials. Instead of using stubborn wires and your rusty soldering skills to painstakingly connect components, why not use paint and glue? This tutorial will share various recipes to create your very own conductive paint, tape, glue, and ink. Using a maximum of 3 easy to find ingredients, these simple materials are easy to make. All of the conductive materials explained in this Instructable are based around the conductive paint (step 1). Using increments of different chemicals, the consistency of the paint can be changed from thick to thin (glue to ink). At the end of the Instructable a simple project will be shown using conductive materials (step 5). There is also a step that is dedicated interfacing conductive materials with kits and teaching classes and workshops.
The first part of this tutorial features conductive paint. The paint will be the base of all of the other materials that are explained in this Instructable. The paint makes an ideal base because of its consistency. To make glue you add slightly more graphite powder, and to make ink a few drops of paint thinner is added... but onto that in later steps.
Have you ever seen miniature flying robotic insects in movies? That might sound like something completely out of science fiction, but believe it or not, engineers at the Harvard Microrobotics Lab are actually working on a bug-sized flying robot called the "RoboBee": 
Before you start building a paper model, you're probably wondering how exactly a RoboBee works. Here is a really quick, layman's-terms explanation of the four main parts, which are labeled in the picture above. Airframe: this is the robot's "body". It's the rough equivalent of an insect's exoskeleton. Nothing super high-tech here - it's pretty much just a box made out of carbon fiber that holds all the other pieces together. Actuator: actuator is the engineering term for "thing that causes motion". In machines, actuators are usually motors or engines. In animals, actuators are muscles. In this case, the RoboBee is actually way too tiny for a motor - so we use a piezoelectric material, which deforms when an electrical voltage is applied to it. A piezoelectric beam bends back and forth as this voltage changes, acting like a "flight muscle". Transmission: this is another engineering term. The transmission converts the back-and-forth motion of the tip of the actuator (which is roughly moving in a straight line) to the rotational motion of the wings. It's hard to see in the picture here - this will make more sense when you build your paper model. For now, think of it like a linkage built out of LEGOs or K'Nex, if you've ever played with those. Wings: This is the most self-explanatory part. The wings flap back and forth to generate lift, which is what makes the RoboBee fly. More advanced versions of the RoboBee have multiple actuators to independently control the wings, which allows them to steer.