I'd go with the mad-modder. He does great customs too.
This is what he said my custom MK jewel would look like...

And here is the actual jewel...

I apologize for not having a light behind the actual jewel. My cold cathode hasn't arrived yet. But you can see how great the quality of their products are from design to implementation!
If you want a custom, give LepPper or no_remorse_666 a private message and they'll be sure to hook you up!