I recently had my second recital on guitar, and that went real well. It was much more fun than the last time (not just because I did not suck like the last time). Instead of having us just playing solo or doing duets with him, the teacher managed to recruit a bass player and drummer for us to play with; we also had a rehearsal the week before with the drummer, bass player and the teacher on guitar. Everyone piched in about 50$ to compensate the drummer & the bass player, and we all had a much easier time than at the previous recital. If you can arrange something like that next time, I think you & your students would enjoy it.
Valentino