Numerous properties of a sphere can be modified, including the size (from "pill"-size to several feet in diameter) and flexibility (rigid to soft). A Sphere can also be used as a light source intramuros. When travelling in the saecular world, for example as a Peregrin, the sphere should be made pocket-sized and not be used for light.
The size of a sphere is manipulated by the avout via hand motions. An open-palmed unscrewing motion on the surface of the sphere, for instance, will cause the sphere to grow. A sphere can be used as a seat, a pillow, a light source, a bowl, a shield (though not an ideal one) and to help secure a chord on a complex, formal wrapping of a bolt.
An early prototype of Sphere capabilities is the latest DARPA project on soft robotics: