Cross syuriken juji syuriken, syuriken-star-seykey syuriken, syuriken-shestikonechnik or metal ring could wrap the cord impregnated with oil. Then, the wick burned and throw syuriken They drove into the wall, beam or a tree, turning into a kind of light. Sometimes in the middle of the wick was invested winding charge of nitrate, and then became hisyaken bomb capable kindle building.
Fukiya bi - "fiery brass arrow" Ninja
Ninja daubed gray arrows brass tubes, burned them, and "spitting" up in the sky. Until the arrow fell down, she lit up the room like a miniature flares.