Shinai - Same Stats as a Katana except S rather then P and can be used with Blades instead of Clubs.
Bokken- Club
Katana- It's already done bro!
Wakizashi- It's a sword, 'cause it's smaller then a katana and bigger then bread knife!
Tanto-Combat Knife OG
Nodachi- (See Street Lethal Page 21)
Naginata- Polearm (Cause who doesn't love really big sticks with blades on the end?)
Bo/Jo Staves- They're Staves Son, says it right in the name!
Now we get into more esoteric
Nunchaku (See Street Lethal pg 22)
kasuri gama- It's both a chain and a Cougar fine blade (Long). I'd assign it an exotic weapon skill, as it's two weapons in one, pick which one you want to use and roll away.
Tonfa- (See Street Lethal pg 23)
Sai- All the examples I've seen are not sharp, so to me these are fancy parrying clubs, so I'm gonna go with Extendable baton. If it they were sharpened, Couger Fine blade (Short), again something i would give a die bonus to parry.
Kama- Cougar fine Blade (Long), when used like they were intended, they should really have a longer reach, but life is not perfect.
Tetsubo- Combat Axe
Updated