Suzanne Stumpf: Urchin, 2010, 3"h x 11" w x 11" d, handbuilt porcelain with wheelthrown components; oxidation fired to cone 10

Urchin is an interactive sculpture as well as a puzzle. There are 13 barnacle-like components that have been attached (through firing) to the perimeter of Urchin, and there are 10 others that are removable. The movable “barnacles” can be used to make multiple arrangements (on and off Urchin). However, Urchin is also a puzzle: there is only one way that the free “barnacles” can all be fit securely and comfortably into the center space.