This hot-air balloon that has the shape of Stan Pines head is The Nightmare Head. It appears in the ninth episode of the second season of Gravity Falls which has the name The Love God. Originally, it had the message I Heart Kids. But letters H and R fell off, so it stated I Eat Kids, frightening the youth. Woodstick Festival, for which it was all prepared, became a horror movie after the balloon caught fire and began falling to the ground. Gravity Falls Grunkle Stan Balloon Sticker.