Gary, We have a club with 20 members and a heap of supporters in Townsville, What we have done is brought 75 gift cards and had them branded in our club colour's and name. We issue a card with their name on it to all members and they charge the card to the value they want so do some of our regulars supporters. when the card drops down to empty the card holder recharges it. and the cards are kept in a folder or on their person.
Now if you have a party or gathering with two or more groups , you can simply get a new gift card and charge it to their value the group wants, i.e $500 and if the second group wants to put @$200 for their own group, same again, this way both barman and group coordinator can keep an eye on the value left, as it comes up on the screen as $$ remainder of ter each transaction and at the end of the night clear the card to use it again.
you could use coloured wrist bands to ID both separate groups.
pete
