For example Moses would share how God protected His people by parting the Red Sea.  There would be a bit more to it then that.  After they share their story; the child gets the Hero trading card.  When each child has collected all the trading cards, they go up to the Heroes prize wheel, where they spin to win any number of various different prizes.

It adds another activity for the children in having to find the Heroes, get their cards, and win a prize.  Then at the same time they get to hear how God works in the lives of his people. Just another idea that I hope you will find helpful.