Ninja Weapons that haven't been used in the series

[ninja-zero]

Is there any ninja weapons we haven't seen throughout the show used yet?

Leo: Katana
Raph: Sais
Mikey: Nunchaku/Kusarigama
Don: Bo Staff/Naginata
April: Steel Fan
Slash: Mace

Other weapons:
- Kamas
- Sansetsukon/Sanjiegun
- Axe
- Scythe
- Naginata
- Manriki-Kusari
- Tanto
- Ninjato
- Hammer

[Powder]

My god, how many threads does this section need right now?

[DonatelloNinja82]

A lot of them?

[snake]

Have San-jie-gun's been used? (Three section staffs.)

And I'm pretty sure the show has covered most ninja weapons, probably the only ones that haven't been used yet are the really obscure ones.

[Donatello19]

My god, how many threads does this section need right now?

Is it really that shocking that the current and still fairly new series' section has a lot of threads at the moment?