Making Robot Muscles for Kid like projects with air actuators

This could be a good way to get kids interested in other ways to build a robot.  Using air pockets and syringes.

http://spectrum.ieee.org/automaton/robotics/robotics-hardware/printable-inflatable-pouch-motors-will-make-building-robots-as-easy-as-using-stickers?utm_source=feedburner-robotics&utm_medium=feed&utm_campaign=Feed%3A+IeeeSpectrumRobotics+%28IEEE+Spectrum%3A+Robotics%29