The Quip III collection requires pranking the Voice of Koda at Tala Point in Snowden Drifts with a Confetti Pouch. The Voice of Koda only appears if the meta event “The Kodan Claw” has failed with Ice Raking as the leader. If the assassination event does not fail the Voice of Koda will never appear. https://wiki.guildwars2.com/wiki/The_Kodan_Claw