With your background, you may think about an assistant with the school shop classes.
Most larger schools offer Metal, Wood, Voc Ag, Voc Auto, and other programs.
Around here, there is a program where kids who are slight problems in school excessive absence, tardy, or minor offenses, that may get them expelled, have to sit in on a class during the time they would normally be just sitting at home, or maybe getting in more trouble.
They use semi-retired or retired people to head the class, not just retired teachers, and make sure the kids are awake, and doing something constructive during that time.
This was started by the schools and the courts as a way to make sure these kids used their time off wisely, and not as a reward, or a vacation.
It seems to work, and I hear the classes are getting smaller.
Good luck