If I were in the Hunger Games I would use one of the parachutes and gift containers and put all kinds of poisonous berries in them and then climb trees and send them down to unsuspecting tributes. Oh, you thought you were getting a nice fruit salad? Think again. POISON.
In Order of the Phoenix, when Molly Weasley tries to defeat a boggart, it transforms into each of her family members in turn, including the twins. But they appear together, because not even in her worst nightmares did she imagine Fred and George being separated.