Planning the lesson I read this statement by Elder Boyd K. Packer:
So, I brought a "Treasure Box" that I actually already had as a decoration in my house and set it on the table where they could see during it the whole lesson.
At the end of the lesson I read the last part of that quote from Boyd K. Packer:
"They loom as a barrier, like a roadblock or a checkpoint beyond which the casual reader, one with idle curiosity, generally will not go.
“You, too, may be tempted to stop there, but do not do it! Do not stop reading! Move forward through those difficult-to-understand chapters of Old Testament prophecy, even if you understand very little of it. Move on, if all you do is skim and merely glean an impression here and there. Move on, if all you do is look at the words. …
“… The Lord had a purpose in preserving the prophecies of Isaiah in the Book of Mormon, notwithstanding they become a barrier to the casual reader.
“Those who never move beyond the Isaiah chapters miss the personal treasures to be gathered along the way”
At which point I told them I brought them treasures!
I used Hershey's nuggets and stacked three on top of each other to look like bars of gold. Then I tied on the last bit of Elder Packer's quote that talks about the treasures we'll miss if we don't move through the Isaiah chapters.
Simple, but effective way to help the kids remember what the lesson was about. And, they loved the treasures of course.