Head Tracking gives pilots a huge advantage, but price of commercially available ones is high. Alternative is making one yourself. If you know a bit of soldering, you can do it.
Here is a video tutorial + example of components. You can change what diodes, resistors you use.
In the video the head piece is 3D printed. If you don’t have a 3D printer you can make it out of whatever you have available. I have seen them made out of straws, mine is made out of metal. What you need to look out for is placing the LEDs correctly;
I made one of these a few years back and it was really easy.
It’s worth noting that if you don’t know how to solder and don’t want to buy a soldering kit just for this then you can buy pre-made ‘diy’ head mounts with LEDs and they can be bought either as battery or USB cable powered - search eBay. They should be about £15-20 (I’m in UK).
Also, the PS3 camera… The video above might suggest that you take the camera to bits and place the UV filter inside the lense. This isn’t actually needed as it’s perfectly possible to stick the UV filter over the top of the lense (externally) as long as you’re careful with the super glue - it doesn’t look as pretty but it’s easier
For the UV filter I used the inside of an old floppy