I highly recommend the Heelotia simulation marketed by Stanford's Program on International and Cross-Cultural Education. Through the simulation, students experience what it may be like to experience a different culture for the first time. They do so by learning a fictitious culture, acting it out, and sending ambassadors between the two cultures. The two fictitious cultures are called Hellotians and Hokies.
The simulation cost in $12.95. Additional materials you may wish to use with the simulation include the Heelot and Hokie name tags (using Avery #5160 address labels) and smaller tokens.