How to Make a Laser Pointer

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How to make a laser pointer for less than $2. The only things I had to buy were some button cell batteries, and the laser diode. I got them both off eBay for very cheap. With this method, you can buy a very powerful laser diode and make a burning laser for a couple bucks. Laser diode: http://www.ebay.com/itm/2Pcs-650nm-6mm-3V-5mW-Mini-Laser-Dot-Diode-Module-Head-WL-Red-/251561250867?pt=LH_DefaultDomain_0&hash=item3a92381033 Button cell batteries: http://www.ebay.com/itm/10-X-AG13-LR44-LR1154-SR44-A76-357A-303-357-Alkaline-Coin-Cell-Button-Battery-HY-/151172291293?pt=US_Single_Use_Batteries&hash=item2332921add Check out Paul Pyro's Channel: https://www.youtube.com/user/ThePaulPyro