This site has my favorite PowerPoint review game templates. One of the things that makes them great is that they come with sound files! The cash cab one is unique, but the Jeopardy! and Who Wants to be a Millionaire are really, really well designed.
This Main Idea Bag handout is from the unit Main Ideas Using Informational Text by The Teacher Next Door. This handout gives ideas about what to put into a main idea activity bag, whether it is the actual item, a picture or simply a word printed on a card.