How to Make an iPhone Stylus

You can make a stylus for an iPhone screen using a few items you may already have around the house. A stylus is any writing and drawing tool used to transfer information from the hand to the surface. The touch-sensitive iPhone screen is activated when electricity is conducted from the body to the device through the fingertips. An inexpensive homemade iPhone stylus is comfortable in the hand and conducts electricity to the screen without causing damage.

...

Step

Cut off a chunk of conductive foam about half the size of a postage stamp. Conductive foam is the spongy black or dark gray foam that is often used to hold chips and other circuitry in a static-free environment during storage. Visit an electronics or computer-repair store and ask for some; you will likely be given scraps for free.

...
...

Step

Dump all the lead out of the mechanical pencil and spread open the adjustable guide pipe at the tip as far as it will go. This is generally done by depressing a button or spinning the cam at the writing end of the pencil.

...

Step

Pinch and twist a narrow end on the chunk of conductive foam until about half-an-inch of its length can be inserted up into the open guide pipe. Tighten the guide pipe down onto the foam by releasing the button or spinning the cam.

...

Step

Trim the protruding section of the foam chunk into the rounded cylindrical form of a small fingertip. Those inclined to draw on the iPhone screen may choose to make a series of styli with different-shaped tips to create varying line widths.

...

Step

Hold the stylus in your uncovered hand and press the conductive foam tip lightly to the screen of the iPhone to make sure it is responding properly. Try using a different mechanical pencil if the first one does not properly conduct your electricity to the screen.