In the article posted on http://www.element-14.com/community/groups/robotics/blog/2011/02/16/ruro-a-communication-robot-that-can-gesture-with-its-hands the author said :

The annual event is only three years old but brings together robot enthusiasts of all ages to compete in games and help spur interest in electronics.  A contest to design the robot received more than 1,600 submissions from local 5th and 6th grade students, including entries that depicted robot cats, dogs, catfish, and even one flower-like robot designed to help with watering plants.


I can't imagine that three years old event can brings together robot enthusiasts of all ages, may I know how you do it...