Marches - Resataurant

I remember a restaurant I went to in Canada when I was younger that has inspired my project. It served all the food you could imagine....there were loads of different stands (like a market) and you went round to each stand, chose what you wanted and as you had something, you'd get this card stamped. Each stand had a different stamp so when it came to paying the bill, the card had a record of what you'd eaten. If you lost the card, you either paid $200 or yopu did the washing up for a week.

So basically, I'm gonna use this idea of recording information..........i like.