
1) Samurai chain weapon
Found on
https://www.crosswordclues.com/clue/chigiriki

The chigiriki is a Japanese flail weapon. It consists of a solid or hollow wood (sometimes bamboo) or iron staff with an iron weight and chain on the end, sometimes retractable. The chigiriki is a more aggressive variation of the parrying weapon kusarigama. It can be used to strike or entangle the opponent as well as to parry his blows and to capt...
Found on
http://en.wikipedia.org/wiki/Chigiriki

This weapon is a 2 foot long straight stick, with a 2-1/2 chain attached to the top with a ball with spikes. This weapon is considered to be the japanese morning star. The chain could be fitted in side the stick like the Kusari-Gama/Kama, and used as a mace.
Found on
http://www.swordsknivesanddaggers.com/ninja-weapons-glossary.html
No exact match found.