I took JHarris' lesson and did a few small tweaks and split it into two parts.
I included a BlockBusters game for Part A, which went over really well with my kids. I split them up into boys and girls, and some of the questions are tailored for the boys and others the girls. Which is great when one group gets the questions meant for the other...
Some of the questions relate back to the lesson, but the majority are random trivia that were meant to just get them talking. Either way, you may want to change some of them... check it out before you do it!
For Part B, I ended any extra time we had with some Pictionary with words I would choose from the book. This also seemed to go over pretty well.