French Fries Adult Costume : Party like its Fry Day! Everyone will be lovin' it! This adult French Fries costume includes a poly-foam over the head tunic that looks like a red and white striped box filled with yummy French fries. Lightweight and comfortable, this adult French Fry costume is perfect alone or paired up with your gal in a ketchup costume for a funny couples costume! Add your own shirt and pants. One size fits most adults up to 6 ft 3 inches.