Changing the Creature ARMS into
WEAPONS/ITEMS!
Once you have found the appropriate items and
creature ARMS (i.e. Delsaber's Right Arm, Pan Arms, etc.)
you would be able to CHANGE them into weapons!
This is done by going to the quest
"UNSEALED DOOR"
Once you are in the quest, look for a FOnewm right ouside the HUNTERS GUILD!
He is supposed to be a Doctor. Make sure you have the ARMS item in your inventory.
When you go to talk to him, he will recognize it and change it into a weapon for you!!
That's it!! Now go and try your weapon out!