Many districts are looking for coaches now, either for new teachers or school sites in general. My school has a math coach and a literacy coach who are shared between several schools. They do not have their own classrooms but instead support teachers in lesson planning, behavior management, curriculum development, assessment, and so on. They also sometimes do pull-out or push-in instruction with small groups of students who need extra support.
There are also lots of youth development organizations that might welcome someone with a teaching background (Girls, Inc. and Making Waves are two that I can think of in my area). Other organizations are popping up too nowadays (Partners in School Innovation comes to mind) that are supporting schools or districts in reforming their practices. You could also look into one of those.
And what about directing a summer camp, children’s theater, or other such program that aligns with your interests? Before I was a teacher I was a program director at a summer camp and it was all the best parts of working with kids, without all the hard stuff (or most of it, anyway). :-) I imagine an experienced teacher would look like a promising candidate to be the director of a camp, theater, etc. Some of those jobs are only part of the year, but others are part-time in the off season and then full-time. You could supplement with tutoring, etc.