I have four options for you, but they all depend on your level of knowledge and respurces. The hardest needs you to have a model editor like 3ds max or gmax; the not-so-hard would be available if you know your way around the toolset, and know/have-installed CEP and NWN Explorer. The easy one requires you to have NWN Explorer and an image editor for Tga's like paint.net or photoshop. Finally, the cheap ugly one just requires some patience to look around the Vault. Make your pick, and let me know!
Obviously, the difficulty of the method is directly proportional to the quality of the end results.
