Theres a guy in the UK who might be making a run of ESB helmet decals soon. He already makes a variety of stormtrooper helmet decals and I've heard they're of great quality. Keep an eye out for an update on his website http://www.trooperdecals.com or you can PM him as he's a member here (search for cannockwolf).
I just need the measurments for the decals so I can make my own I got a real good guy here in fresno who does em real cheap. I am a newbie to this board but I have been painting these helmets for awhile now. example
Try TK-409's site. I think he has images of what they look like. I also recall that in the templates thread there was a template of the left ear piece that showed the white mark and the black "E"'s on them. Maybe photoshop that and make it a decal?