You can use them, plus a Rayfoss driver (for Blu-Ray diodes) + a PS3 diode (if you only want 5mW... I suggest you use a PHR sled diode and get the driver set at 100mA so you can get 100mW)
Well, the problem is that i need something like the ones in laser pointers, something non focusable without wires and without having to pull one out of a laser