I'll have to look for it, but while I was in college, my friends and I developed an alternative currency system. The foundation was the "girth," and "girthage" was devised to avoid broad monetary problems. We even had the "girth-cent" (.01 girth).
One girth was equal a six pack of soda, a Big Gulp, or a half pound of bulk candy - all of which were available on the dining plan (so we didn't ahve to spend real money). Just do something similar, come up with a couple of goods of roughly equal value to you all and use them to create a currency.
One girth was equal a six pack of soda, a Big Gulp, or a half pound of bulk candy - all of which were available on the dining plan (so we didn't ahve to spend real money). Just do something similar, come up with a couple of goods of roughly equal value to you all and use them to create a currency.