Make has provided advice and guidance on how to set up your own school-based Maker Faire. They are providing this support and the allied licensing to use the Maker Faire name, logos etc. for free, subject to some restrictions that ensure that a School Maker Faire and other types of Maker Faire are clearly distinguished.
If you wish to pursue this idea, firstly I’d be really interested to hear about it. Secondly, I’m up for providing what support and advice I can based on three years of helping produce the Manchester Mini Maker Faire. Thirdly, especially if you are within reasonable striking distance of Manchester, I can offer to help by running an all-age soldering workshop.