Split up into groups as small as 4 or as large as 10. Each group must design a flag, write a national anthem, think of foreign policy, education system, health care, welfare, governmental system etc. And of course a country name. Consensus must be drawn for all decisions within the group. Present the countries to the large group. Discuss how hard it was to agree on the different issues at hand, and ask if it really is their perfect society, or did they have to compromise on certain things so that more people were happy with it over all.