roman01la presents a nice rigged hand controlled with LM and Three.js. Including a very detailed howTo and a working demo on his blog.
Leap motion experiment with a rigged hand using Three.js and Blender.
Controller still need to provide more precise data.Working demo, code and description: http://blog.romanliutikov.com/post/60899246643/manipulating-rigged-hand-with-leap-motion-in-three-js