Here is a PPT that I use to review t-tests with my students. All of the examples are rooted in The Hunger Games. My students get a kick out of it and this particular presentation (along with my Harry Potter themed ANOVA review) is oft-cited as an answer to the question "What did you like the most about this class?" in my end of the semester reviews.
Essentially, I have found various psychological scales, applied them to THG, and present my students with "data" from the characters. For example, the students perform a one-sample t-test comparing Machvellianism in Capital leadership versus Rebellion leadership (in keeping with the final book of the series, the difference between the two groups is non-significant). So, as a psychologist, I can introduce my students to various psychological concepts in addition to review t-tests. Note: I teach in a computer lab using SPSS, which would be a necessity for using exercises.
Caveat: I would recommend using this only if you are familiar with and love The Hunger Games trilogy.