Pairing perfectly with the DX Yokai Hammer, Premium Bandai just opened up pre orders for the DX Gashadokuro Yo Shuriken.
This Shuriken is of course the one that Kyuemon uses in the show to summon giant Yokai as such, the Shuriken will share functionality with the DX Yokai Hammer itself. Interestingly, the photos indicate that it can be used with the DX Ichibantou as well.
The DX Gashadokuro Yo Shuriken will be released in December 2015 with a relatively affordable price tag of just 2,700 yen before shipping and other fees from your preferred middleman.