Designing animated eyes for interactive characters, robots, and toys is a challenge: they must be dynamic, fast, and highly expressive in order to represent a broad variety of character emotions and intentions. Creating eyes for fictional characters, (for example, in animated movies and cartoons) is particularly challenging, because their eye expressions are often non-realistic, highly exaggerated, and contain a much richer vocabulary of expressions than human characters. At the same time, the eye technology must be compact, fit into small characters bodies, require low power, produce no audible noise, and be robust and easily replaceable.