In this I will show you how to get to pretty powerful magnets from a pair of broken headphones.
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Step 1: What You Need
All you really need is a hammer, but some kind of sharp knife, like an exacto knife, could be useful if you want to cut the wires.
Step 2: Headphones
I used a pair of Skullcandy headphones that had broken. I don't if it works for all kinds of headphones, but it probably will work if it is the kind that goes into your ear.
Step 3: Getting in the Headphone
I couldn't think of another way to crack open the headphone, so I just smashed it with a hammer. (Don't hit it to hard, just untill you can get all the plastic off the top part)
Step 4: Inside the Headphone
When you get the headphone cracked open, theres should be a little round thing. Take that out and take off the little disc covered in really thin paper. Under that should be the magnet. (sorry for the bad picture quality, I took them with my iPhone)
Step 5: TA-DA! MAGNETS!!!
Now you should have at least 1 magnet! ( if you only did this to 1 headphone) Like I said in the intro, these are pretty strong magnets, so have fun!