For a school project Instructables user "pablo_g16" decided to create something not seen before and thus created his "Handroid" animatronic hand. It's a stellar effort, and uses five Arduino-controlled servos to control the fingers. The fingers are made from scored rubber tubing, and the servos pull the fingers back via fishing line. The author mentions a lot of trial and error, however for a first project of such complexity it's a great job.
To find out more and recreate your own, check out the project page. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
If you found the project above interesting - but not sure how to start with Arduino - then the best way to learn is with our Experimenter's Kit for Arduino:
The package includes a wide variety of parts, sensors and modules including: a servo motor, lights, buttons, switches, sound, sensors, breadboard, wires and more. Furthermore a Freetronics Eleven Arduino-compatible board is included to make this an extensive hobby experimenter, inventor and starter kit. However we don't leave you alone to figure it all out, included is a great project and instruction booklet, plus access to a supporting web page and software examples. In other words - this is everything you need to get started for a fun range of electronics and Arduino related projects!