What a great idea!
Teaching kids to accept responsibility for themselves is crucial. So is teaching them that being negative just creates more negativity.
Two things jumped into my mind when I read your post.
The first is an analogy I read once that really stuck with me. It went like this. Think of life as being just like a mirror. Now, if you saw a person frowning angrily into a mirror, and you asked that person why he/she was so upset and they told you that they were upset because the image in the mirror looks so angry, you would think they were crazy, right?!
But this is what so many people do throughout their lives. The universe is just like a mirror, only its on somewhat of a time delay. You have to smile first before it can smile back at you. If you can teach that to the kids I bet it'll really stick with them.
The second thing is a game I read about in the book "Healthy at 100". This book researches several different cultures who have remarkably fit, healthy elders and documented all of the trends they shared. Of course, these cultures also tended to have remarkably happy children.
One game the children played was the sharing game. A bunch of possessions would be gathered up (pencils, papers, markers, notebooks, keyboards, whatever you have handy in the room) and given to just one student. Then the other students take turns shouting out things they need to the student who has everything. "Oh no! I need a notebook so I can document all of my research!" Then the student who has everything gives the requesting student what he or she needs, and everyone applauds.
This teaches sharing and service to others, central tenants of the LOA. And it teaches the kids to use their imagination (by making up why they need the item) and it betters their communication skills (by requesting things politely). They'll have a great time and wonder why everyone in society doesn't share. Its really a win-win game.
All the best with your kids. I'm so glad you are teaching them these things. I can tell you are going to be
that teacher, the one they'll always remember..