Search in the forums, theres a post about how to do that for Mobs (manual Hex adding EFT references in .MON files), may be is the same way for NPCs.
Also there are many posts from Castor explaining how EFT files works in Mob model definitions.
Glowing Hands 07/19/2006 - WoW Exploits, Hacks, Tools & Macros - 15 Replies Im not sure if this has already been posted,and if it has pls excuse me. I used to do this all the time at lower levil(you need to be at least levil 35 to do this).First you well need a Cold Basilisk Eye. http://www.thottbot.com/?i=3836
You can usualy get them for cheap from the AH. Then find a easy mob to kill, right before the mob is about to die pop the trinket. If done correctley and the mob the should die without the trinkets effect working. Now your hands should be stuck glowing blue...