Instructables
'Tis the season to salvage junk!  Where I live, poeple put out big piles of trash every year in April.  It's amazing what one can find.  Last year I must have found 15 or 20 speakers.  I first found out about rare earth magnets from the Smash Lab episode ''High Rise Escape''. I soon learned that they could be found in old speakers.  Alright, enough talking, go find some speakers!  
 
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Step 1: Open 'em up.

Okay, now that you've found some some speakers (you have found some, haven't you?) get out a hatchet and knock in the back and then the sides. If you don't have a hatchet, you could use a hammer.  If you don't have a hammer either, then what the heck are you here in the first place (I mean, who comes to a site about making things without a hammer!).  It's a good idea to do this outside, as it makes rather a mess.

Step 3: Do It Again!

Picture of Do It Again!
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Now that you've got one magnet, try for 20!  I've been collecting for 2-3 years and I've got almost 40. My best one looks somthing like a  a landmine, and weighs, oh, I don't know, 30, maybe 40 pounds.

What to do with all those magnets?  Maybe you could sell them on Ebay, or start a speaker repair shop - it's up to you. Have fun with this.  

Black Hole over and out