We had a fabulous time hosting an international dinner party for friends.  We assigned each of our guest a country drawn from a hat. Each guest must bring a dish from their country; dress in the clothes of their country and also bring a drink/cocktail/ and/or liquor/lacquer  from their country. To top it off, each person must be act in 'character' of their respective country. At dinner time we had music randomly selected from around the world. WE decorated with posters (we asked travel agents for used ones), flags and so on. It was an absolute gaseous time--everyone enjoyed themselves and we are now working on our third party.  P.S. Be prepared for a bit of interesting digestion. Enjoy