The crossbow Nathan used would have to be included. Too bad he didnt know how to aim it properly.
Barnabas' Pistols would also have to be added. But please someone get the man a houlster, that tucking the pistole under the belt is just too suggestive. I am suprised the censors let that one go.
The dagger style letter opener in Blair House.
The various poisions and potions used by many of the characters, (I'll let someone else identify them individually).