While it's 500% justified to make fun of a stimuli-responsive robotic ass or other novel projects from Japan, far too often we neglect to circle back around and present the actual merits and practical applications of the so-called "Creepy Japanese Robots." Not this time!
Researchers from ETH Zurich showed a robot capable of robotic body extension. By melting adhesives such as hot glue, the robot can additively fabricate and assemble tools, and integrate them into its own body. (L. Brodbeck, F. Iida: Enhanced Robotic Body Extension with Modular Units, IROS 2012).