How to make a cheap fan from parts bought at the dollar store. This fan can be made for about $2 (plus tax), unless you can buy a double ended USB wire, then you can make 2 USB fans for $3 (plus tax). That definately beats the $15 or $20 stores tend to charge for these types of devices.
This is my first instructable so I wouldn't mind if people posted their opinion.
NOTE: Pictures will be added at a later date when I make the second fan, the first one (which I am writting this instructable from) was simply a test to see if it would infact work.
Step 1: Preparing the USB Cable
Cut the USB cable to the length you require (long if you need to attach fan to a USB port in the back of your computer). Becareful not to cut the inner wires, use a wire stripper (if you have one) or simply a pair of scissors (be careful not to cut yourself).
Once the protective jacket has been removed, remove some of the shielding such that the 4 wires which make up the USB cable are exposed.
Cut the white and green wires short (to the protective jacket) as they will not be needed for powering the device.
Step 2: Preparing the power wires.
CAREFULLY, remove the outter protective jacket from the red and black wires to expose the copper wire underneath. Twist the exposed wire (if not already done) to make your life easier.
Step 3: Taking apart the fan.
Remove the battery cover as well as the screw holding the two halves of the fan together (becareful not to loose any small parts such as screws/switches).