Custom xbox 360 controller question?

I was wondering if there is anyone out there who either knows a site that can do this, or can do this themselves. I was looking at some custom xbox 360 controllers and i saw some where the back, start, abxy, d-pad, and even both bumpers and triggers lit up by LEDs. I want to have an xbox 360 controller with all these ons illuminated by purple leds with either transluscent purple ons or purple ons clear to an extent that at least lets some of the light show through. I already have someone to do paint for me so if anyone can help me with this I would be very, very happy.