Joey sent in his really nice Blu-Ray laser pointer that he made. His build is well documented, and there are a few features that make it unique. He said that you could even see the beam of light in a dark room, that’s cool.
I focused on building a high quality device. I am really happy with the size and quality of the case, and current-limited power supply, as opposed to the simple resistor based design some other designs suggest. I also opted for rechargeable Li-Ion batteries for great performance and size.
Read more about the DIY Blu-Ray laser pointer
Related: DIY Blu-Ray Laser Phaser