Right,
First off you'll need some tinting spray. You can get it from most motorfactors for around £10-15. I got mine of ebay for around £15. Nice big 400ml can so can do a few sets of lights with it.

I was going to take the lights off the car but I didn't really see the point as I though it could be done well enough with them on the car. So first off I where all the raised markings were on the lights. In the picture below you can see the Hella marking roughly in the centre of the light and in the bottom corner you can see a circle with some writting in it.

Once you've found all these bits crack out the 240 grit (I wouldn't use anything rougher to be honest, 240 seemed to be perfect).
Sand down all the bits that are raised. It will look like your knacking the lights but don't worry, they should be fine. The plastic will turn satin when you sand it so if there are any glossy bits on it you haven't sanded down far enough. You don't need to do the entire light with 240 grit just the bits that are raised.
Once you've done that should look a little something like this..

Because you end up with bits that are really rough and satin and other bits that are still smooth like factory I gave the whole light a go over with some 600 grit wet and dry (with warm water with a little drop of soap). It still looked a bit rough after this so I gave it a once over with some 800 grit aswell (again with warm water). The light looked nice and smooth but with a light key.

After this I gave them a quick clean with some spirts and left it to dry for a bit. Once it had dried enough I cracked on with masking. I think I spent more time on masking than anything else. Making sure I got it right.

Once it was all masked up it was read to paint. So I put a nice even coat of red on top and let it dry for a while. Looked a bit thin so I gave it a once over again and it came up perfecto. Removed all the masking and it looked a little something like this. Looks a bit orange in the pic but when you see it in person it looks like a perfect match with the stock red bits. Not sure why its come up orange in the pics.

If you wish to finish them off with some laquer thats up to you. I don't have any laquer knocking about so there gonna stay bare for now but that will mean they will probably need doing again at some point. Laquer should protect them I'd image.
In total cost me nout cause I had all the bits lying around. But call it £15 for the spray (which will do at least 5 sets of lights I reckon) and about 99p for the masking tape. Newspaper can be picked up free from a multitude of places.
Nice cheap way to mod your lights
