The Grace Episcopal School GatorBots had a Demonstration Day and end of the year party on April 13. This was done in conjuction with National Robotics Week.
I took my Parallax Stingray Robot and let it "roam" around. The kids were very impressed. The loved the size, which looked huge compared to their Scribblers. I am starting to make some head way on this great robot. A picture from the Demostration Day is posted above. The current version has 5 - Ping))) ultra-sonic sensors and a Parallax 4 x 20 LCD display.