How To MAKE A BURNING LASER, Save 100’s Of $$$For more of the funniest videos, click here
I’m not sure what exactly this video modded to make their laser more powerful (screw and soldered a component?) perhaps a maker out there with a cheap green laser can check it out – [via] Link.

From the pages of MAKE:
Make 715
Mini High-Power Laser by Stephanie Maksylewich in DIY: Circuits. MAKE 10 – page 140. Liberate a 200mW laser from a DVD burner. Subscribers–read this article now in your digital edition or subscribe to MAKE (use code CMAKE and get MAKE for an additional $5 USD).