wand

A thin, straight, hand-held stick made of wood, stone, ivory, or metal, with ceremonial or magical significance.

In fiction, it is generally used as a magical tool to cast or channel magic just like a magical staff. Differences between a stave and a wand include a staff being larger (several feet long, about the length of a walking stick and held one- or two-handed) than a wand (usually shorter than two feet, held in one hand or a few fingers) and that a wand is often used in less "serious" works especially by fairies or fairy godmothers and can imply a playful form of magic.

Laevatein, associated with Flandre Scarlet, is an example of a more unusual wand.

Not to be confused with conductor baton, sometimes also referred to as a wand.