Fun, simple, and can be bought in bulk! Load it into your presentation software and go, go, go. These are "one outcome games, so they cannot be played over and over again.
10 Second Rule
How fast can your students think on their feet when presented with random topics? Players will be given a category and they have to name as many things associated to that category in 10 seconds. Rotate players in per category, or do it as a back-and-forth face off!