You make a project ( card) and then cut all of the parts you need to have the number of people who are coming be able to make the card or project. And many people put it in a shoe box thus the name shoe box gathering.
You go home with 15-20 projects depending on the number of people who come.
You asked about the color combo on one of my cards "close as a memory". It was Real Red, Basic Gray and Whisper White. The photography was very good on that one. Thanks for your nice comments.