My 10 year old daughter would like a joomla website where she can add her homework (for her teacher to log in and collect), allow her friends to interact in discussions and sign on themselves and put up her projects which everyone can view.
Its a pretty new idea so there are no templates out there for it, but it does mean that you can sort of go wild on the ideas like adding games & quizes that the teachers would approve of etc.
I have no graphics, School colours are purple/white, favourite "in" thing at the moment for her is monster high.