Shikomi-zue

A shikomi-zue was a weapon used in Kara-Tur, primarily by ninjas and sohei.

Description
At first glance, a shikomi-zue appeared as a regular staff. However, a spring-loaded spear head was hidden within. The spear head sprung forth by either pressing a button or twisting the shaft. Other weapons could be concealed with the staff such as chains or hooks. A shikomi-zue was made from either bamboo or wood and was about in length. Assembling the weapon took about a week.