I have worked with a remote telepresence robot for over 5 years now: http://www.guardian.co.uk/technology/2007/sep/13/guardianweeklytechnologysection.news It's quite an interesting social experience. There are many technical challenges to consider (batteries still being what they are). Admittedly, our implementation is more "hobbyist" than anything else, but it's a very functional POC.

I too, have been a camp counsellor at a Computer Camp (4 years for myself - I held out) in Mississauga (just outside Toronto). And N0decam has a really good point - kids will give up really easily if they're not entertained the entire time they're there. I've taught 3D Studio MAX and Poser before. Some of the longest days I've worked is on those Fridays where the kids sit there, spinning in their chairs waiting for stuff to render! Kudos on the idea for a camp though! Want a resumé? :)