These Stingray bot parts were purchased second hand, because Parallax unfortunately stopped making them some time ago, but I think they are pretty awesome. Roughly 3x the size of the smaller Activitybots we were playing around with before, and DC motors for some serious speed. They're almost too fast for the ultrasound sensors' ability to let it know when something is up ahead.Here's a couple pics of Kat and the Stingray bots.
Have to click on them to enlarge.
stingray_original_kat.jpg
stingray_original_complete.jpg
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Originally Posted by shiva
She's going to a hybrid high school /Jr college program and enjoying herself for the most part with Taekwondo, Job's Daughters group and just got her SCUBA certification so after me to get back into it. Add in robotics on the side, working on the Jeep, etc...never a dull moment around here! 
Someday I want to have it stream video from a first-person viewpoint as it roams around, and be able to detect a person, talk back, etc. Eventually we'll put some kind of gripper on there, and that opens up a whole new can of worms programming strength, coordination, etc. 