I do like the idea of making training fun. For OSHA/safety training this year, the ops manager and I devised Safety Carnival, a day of mostly fun and games to give people a break and keep them engaged. We did around the room bingo, a crossword about our evacuation plan, a basket toss from the top of the ladder game after ladder safety training, etc. We included lunch out at a local restaurant (we are a small group) and tallied points and had an awards ceremony at the end of the day. People seemed to enjoy it. These types of things could be translated into quality.
I'm also a proponent of reminding people of the real-world impact of their jobs. It's easy to lose sight of why we do these mundane, PITA things that slow you down and when you lose sight of that, you become tempted to cut corners. Even good employees who do care are not immune to this. I made a "When Quality Fails" training here about real-world examples of harm done when quality was ignored. During quality training, I also share an anecdote from my distant past as a tech in a biotech company about when I said "Why do we do this, it's so stupid!" and didn't do it and it bit me in the butt. At my last job (railroad dispatching), I always took the opportunity to remind my trainees that the difference between someone saying 9 and you hearing 5 could be a foreman getting run over. I also had them read the bulletins we kept on file of past mistakes we had made and FRA reports on accidents.