Ribbonweave

This weapon appears to be a short cane or walking stick carved with abstract designs that give it a variety of weird protrusions and handholds. In its normal form, the ribbonweave functions as a club, but it features a catch that can be triggered as a free action, releasing a flexible sharp-edged metal ribbon from the end of the stick.

You can use the Weapon Finesse feat to apply your Dexterity modifier instead of your Strength modifier on attack rolls with a ribbonweave sized for you, even though it isn’t a light weapon. You can’t wield a ribbonweave in two hands in order to apply 1-1/2 times your Strength bonus to damage rolls.

Ribbonweaves are popular among changelings because they are easily concealed. A DC 18 Search check is required to determine that the ribbonweave is a weapon.