From blu ray players..

[FerdeLance]

What is the best diode you can scavenge?

Also are there any guides to making a pointer out of them?

 

[diachi]

What is the best diode you can scavenge?

Also are there any guides to making a pointer out of them?

This diode: https://sites.google.com/site/dtrlpf/home/diodes/bdr-209-405nm-16x-diodes

And yes, there are loads of guides and build threads. Have a search around.