Sharpen your teeth you poor bastard.
Seriously find a tech adept who is willing to craft some arms for you in exchange for a favor from the group, could make for a fun little side-quest. I had one instance in my old group of the arbitrator blowing off his own leg by accident (what is it with arbitrators and losing limbs), and there was a very friendly tech adept just waiting to help him... free of charge. The entire group thought i was being too soft on the guy. Little did they know the friendly tech-adept was just a very dangerious heretick who wanted to expiriment with replacing machine spirits with daemons, and the arabite got a new daemon pal with his new leg. He knew something was up when he woke up from the surgury and I passed him a note saying (23 corruption points).
Hehe, I was a real A-hole GM
).