K.M.
Great ideas so far! One of our pack favorites was this:
Divide the groups of seven, or just into small-ish group.
Have the boys walk around in their groups (contain them to a certain area so they don't get mixed up with the other groups) for about 20 - 30 seconds and tell them to observe who is in their group. Blow a whistle and have them get down on the ground in the 'tornado drill' position and cover their eyes.
Put a blanket over one of the boys. Tell him to stay still! Have the rest of the boys stand up and try to figure out who is under the blanket.
You can make it more challenging by combining the groups into larger numbers.
It sounds simple, but it is a lot of fun and really forces the boys to pay attention to each other.
How awesome are you to help out your husband like this!! Good luck and have fun tonight!