This swizzle stick was produced to accompany the Mystic Libations book which combines fantasy roleplaying with tiki style cocktails. It came in either purple or green.
From Trader Brandon's website: "Created by former Walt Disney Imagineer Brandon Kleyla, and writer/actor Todd Stashwick (12 Monkeys, Supernatural), Mystic Libations is a collection of over 100 delicious cocktail and mocktail recipes from mixologist Roy Hanzal (Trader Sam's). But there’s more! Also included are in-world stories, an original RPG adventure inspired by Brio and Torrey's adventures, plus an exclusively created player sub-class! This book is certain to conjure a delicious new experience for your game nights!"