It's actually perfectly possible, but it would take a lot of work. We do NOT want the devs to add a new item for every mw item in the game. It'd take a lot of time away from the work they are already doing, both to make the items, AND to write a script that would force switch your item for the "ornate one", which is what the game would have to do everytime you logged in with that weapon. Meow came up with the idea of making a separate "Ornate items" texture pack, kind of like the banner pack. You can put it in, and have all the ornate items you want. Drawback is that all items with the same model would be made ornate, but maybe someone else can take the idea and come up with a solution.
