Here are some pics of what I did to modify the tail lights. The head lights were easy, just took them apart and made a hole big enough for the lights to fit through.
I had an extra light set from my Xmods so I decided to make 4 tail lights instead of just 2. I just used some plastic from a package and formed a rectangle out of it. Glued it together and cut some holes through it....
Mini-ZLights001.jpg
I then put black electrical tape around the boxes and around the back end so there wouldn't be so much light showing through the body, just the lights...
Mini-ZLights002.jpg
And here is what it looks like in the dark...
Mini-ZLights003.jpg
I know it's kind of cheap looking, but it works.