Feasts

The Hunger Games typically include feasts each year. Feasts are used to bring the remaining tributes together. Often when food is scarce in the arena, the Gamemakers will invite the players to a banquet at a well-known place, such as the Cornucopia, to induce a bloodbath. Sometimes, nothing is provided at the feast but a stale loaf of bread.

74th Hunger Games
In the 74th Annual Hunger Games, each one of the final six tributes had something they "desperately needed" for survival in the Games. The Gamemakers provided all of the items they needed, and then placed them together at the Cornucopia.

Attendees

 * Katniss Everdeen — Peeta Mellark, being desperately wounded at this stage, needed medicine badly. Katniss went to collect it.
 * Thresh — It was never said what he needed.
 * Foxface — Based on information released later in the book, Foxface probably needed food.
 * Cato and Clove — It was implied that it was Cato's body armor. Clove could have also used if she had survived.