Huh, that's cool.
I'm pretty tired (why can't I go to sleep?) but buy two and then use the weapon graft out of FF to turn them into natural weapons. Now you have +2 att/dmg for 2,000gp, can full-attack as normal using headbutts/knee bashes, then attack another four times from improved rapid strike, and every attack you make is basically double enchanted. I need a punch face joke about now.