Steampunk Shock Katana
An amazing Steampunk sword, functional as well as beautiful.
The Nautilus Steampunk Sword Cane | True Swords
I designed a knife very similar to this for a DnD character a few years ago, now I know it is called a Tessen.
Steampunk Reforged Blade
This is the coolest thing ever AND handy if you run out of arrows (though I wonder how long it takes to change the weapon...)
Steampunk Airship Pirate Boarding Latex Axe
Airship Pirate Cutlass - A totally safe steampunk weapon made for LARP - from museumreplicas.com