Paid?
Get even remotely close to a suggestion of a workshop, and watch out for Ferarra! "Music in the Classroom" would be good. You get to mention your school name a bazillion times, make contacts from all over and possibly bring some home with you. Are there other teachers who might be interested?

What would be REALLY cool: if there were kids who knew a lot of songs and could co-lead a workshop. "Songs From the Back of the Bus." Of course, these might not be the sort of songs Allison wants to bring home. The other problem is that kids may want to keep the songs to themselves