Teach the girls how to bowl and discuss every single standard at the same time! You could play a full 10 frames and still have time for chips or popcorn! We did this at stake day camp with only one turn per girl and FHE with ten turns per kid. It was really fun.
Preparation: Have a picture for each of the my gospel standards. Put them on a poster, so that when a girl gets done bowling she can pick one off for you to discuss. I used these pictures.
Have a lesson introducing My Gospel Standards. Then bowl and review. Bowling is a great wholesome activity that helps girls have fun living their "Gospel Standards".