sounds interesting id have to see the anime myself, but if it could be done it a cool and practical way then i say y not.

Sounds interesting.

I think it could work.

I have that manga. I didn't see the show, but the manga is what it's based on. As for three swords, I think that, although the one in the mouth is cool I have a more practical sugestion. Why not just give somebody a dual bladed sword in one hand and a normal sword in the other, they're still fighting with three blades.