im also looking for the same thing.. I've seen some mods that have weapons you can dye, I believe, but nothing in regards to dying basegame weapons. there is a mod, however, for dying shields which is nice; I can't with the clashing aesthetics anymore though. I'm not sure how possible or how hard this is.. but i'd really like for it to happen. or maybe i'll just have to learn how to do it myself :')