This is 3 east step to make you a microphone of a par of headphones =)
Step 1: Step 1
First you need a headphone. If you don't have one go to Dollarama or any dollar store and buy one for a dollar. It doesn't matter what headphones you use, as long as it works.
Step 2: Step 2
Step 3: Step 3
There you have it, your very own home made microphone, now test the microphone by going to sound recorder or any other program and record. ENJOY! =D