Customizing? I dont know about that but i got my custom emblem from http://www.aftershockdecals.com/
and the quality is superb. It looks like an HD picture just about and goes on clean, and besides they have just about anything you could want.
6" Zone Lift, 35x12.50R18 Nitto Trail Grapplers, Tow mirrors, 09+ Emblems, Edge Evolution Tuner, Cut rear two cats to an X-Pipe running to twin black tips out the side, Twin 10" pioneer champion subs, Pioneer 1600 watt amp, kicker door speakers 6x8", Kenwood DNX 570HD , and pretty much PTM'd anything.