still remember when I was a kid in Hong Kong, Pizza Hut had the similar thing for salad. They had an open salad bar, and they gave you a little bowl and you could put any item from the salad bar into that bowl as long as it could hold, but you are allowed only one time. It was quite funny everyone tried their best to fit as much as they can. Wonder if Pizza Hut in Hong Kong still have it.
My friends are good at this. They did the similar thing in HK about 10 yrs ago. However, don't know whether we still have a chance to enjoy the game again in HK.