A teen hotline, for example, where kids with personal problems could call in and talk to other kids. Or maybe a special center for kids who need a little companionship. Say they are going through a rough time at home, and need to get away for a while. They could come to this center and join their peers, just to relax for a little while. I'm sure other kids in the community would be happy to get involved in something they can relate to.
Kids know kids, and when it comes to helping each other, there's no one more willing.
Of course, there are plenty of teen-agers in the city who just want to help out, and would be willing to give up a Saturday for a chance to do so. There are events around town a lot of the time that most in the younger generations don't even know about. I'm sure they would find many able volunteers. The schools would be perfectly willing to tell their kids about any opportunity for them to stay out of trouble, and get something done in the meantime. There are a lot of young people in Wichita Falls who are dying to help others.