Well, make these things magically animated instead by spirits of ogrish hunger - mauls with metal maws on them that not only crush but bite chunks out of your armor, clothes, you.
I tend to agree that it doesn't seem very useful to me. And while I agree with Axlerowes that all kinds of weapons got tried, the ones that didn't work well got dropped quickly, either because the fighters went to something different, or they all got killed. I agree with Cheka Man that it would have some scare value, I can imagine a few ogre champions with these, backed up by lots with more normal weapons. And it wouldn't be too complicated to be made by a fantasy race.
NPCs (Extras) (Artistic/Performance)