In case all the ideas on this website aren’t enough, I just found a great blog that gives you a steady stream of cool classroom ideas, mostly for elementary school, but I already see a couple I can modify to use in my community college classroom. The author is Mike Perry, and he taught high school math, but many of the games will work with any subject. http://classroomgamesandtech.blogspot.com/

For example, here’s a game called “This or that” that would work well as an ice breaker in any class at the start of the year: http://www.prometheanplanet.com/en-us/Resources/Item/92529/this-or-that-game