A passive illuminator that is configured to releasably engage the outer peripheral surface of a household component includes a main body having first and second ends, and inner and outer peripheral surfaces. The main body is configured such that the first and second ends are movable with respect to one another upon application of an external force to the main body. When the external force is not applied the first and second ends are disposed at least proximate one another, and the main body inner peripheral surface is dimensioned to releasably engage an outer peripheral surface of the household component.