My office frequently raises money for charities holding lotteries or raffles. A coworker and I were considering more creative & entertaining ways to raise money, and we hit on the idea of playing Risk! Participants would be randomly assigned territories (most likely one territory per participant given the # of participants in my office) and could raise armies by donating money (say $1 per army token). Players would be free to form alliances & conquer neighboring territories as per the rules. Not sure if the Risk cards would be used in order to keep our rules as simple as possible. The winner of the game wins a prize, with runners up winning secondary prizes.
Questions: How can the rules of Risk be adapted to a fundraiser in order to maximize the amount of money raised? Once a player is knocked out of the game, how can she continue donating money in a meaningful way? How do we link # territories owned with # of armies you can raise without placing undue restrictions on donation amounts?