Robot Octopus Handshake

 Designed by a team of Italian scientists at the The BioRobotics Institute in Pisa, this robotic octopus arm is the result of a project focused on developing technologies which mimic the dexterous movements of an octopus' limbs in the hope that the technology could be used to develop new handling systems for human users. The responsive system in the limbs is designed to create a custom gripping system for safer handling of delicate or hazardous materials, and further testing is being done to create a system which employs multiple robotic limbs at once. 

Source:http://www.newscientist.com/blogs/nstv/2011/09/born-to-be-viral-robot-octopus-shakes-your-hand.html