From Wiki: Poi is a performance art in which a ball or balls suspended from a length of flexible material, usually a plaited cord, are held in the hand and swung in circular patterns. Poi is one of the traditional performing arts of the Māori people of New Zealand, and has developed many forms used worldwide as a hobby, exercise, or performance art alongside juggling and other forms of object manipulation.

lovely, just wish you had uploaded a High Res image.

So, what's the hobby besides kinetic photography?