One night our church had a fall festival, and that evening people started to roast marshmallows. Then somebody had the idea to start throwing them at people (the unroasted, non flaming ones :)) and from there it all broke out in lots of fun.
What you need is two bags of marshmallows, and two teams of however many you want on a team. Then you give each team a bag of marsmallows and spread them out to everybody on your team. Once everybody has some them you start the game. There is no boundries, only if you get hit you have to sit down. If one of you teammates catches it you are back in the game. And you keep on going till there is only one person left on one team.
It is a lot of fun!!! Our church had a blast!! Hope you do too!!!