Can be held in storage by an Event Item Storer.
How to Obtain
Purchase all 3 of the new Pricket lanterns: Djinn Pricket (Bastok), Jack-o'-Pricket (San d'oria), and the Mandragora Pricket (Windurst). Place the Prickets in your Mog House via the /layout command, and wait until the Conquest tally. You will receive a Korrigan Pricket when you speak to your Moogle along with the following dialog:
Be sure you do not have any furnishing laid out that regularly gives you something after each Conquest tally, like the Beverage Barrel, as those may have precedence over your prickets! See the Furniture Quest page for more information.